The direct answer: sales almost always dip, and a dated plan beats hope
You keep sales after launch week by booking specific work for weeks two, three, and four before the launch-week spike fades. Enter your launch-week copies sold, your live review count, and your newsletter list size into the planner above, and it sorts you into a momentum tier with a week-by-week task list and hour estimates. Strong launches defend rank with a promo stack plus a measured ad test, steady launches pair one feature with one swap in the same seven days, and soft launches spend week two collecting honest reviews before paying for traffic. Every percentage and decay rate on this page is an illustrative planning assumption for sizing effort, never a forecast of what your book will earn.
Why week two decides the next six months
Launch week is artificial. Preorders land on one day, your newsletter clicks at once, friends buy together, and any booked features fire inside a narrow window. The store algorithm sees a burst and rewards it with visibility, which produces more sales, which holds the visibility a little longer. Then the burst ends. Nothing is broken when sales fall in week two. The concentrated demand that created the spike simply ran out, and the book must now earn ordinary daily discovery one reader at a time.
What separates books that stabilize from books that vanish is whether the author scheduled a second burst before the first one decayed. Authors who wait until sales hit zero before acting face a harder climb, because rank, also-bought placement, and review velocity all cooled at once. Authors who roll straight from launch week into a booked week-two feature start from a warm position and spend less to hold it. The planner exists to force that scheduling decision while launch week is still fresh.
How the planner scores your momentum
The tool uses three inputs and one small piece of arithmetic. It adds your launch-week copies sold to ten times your live review count, and the total becomes your momentum score. The defaults show the math clearly: 300 copies plus 28 reviews times ten equals 300 plus 280, which is 580. A score of 500 or higher reads as strong, a score from 200 up to 499 reads as steady, and anything below 200 reads as soft. Your newsletter list size does not change the tier, but it shapes the recommendations, because a 4,000-subscriber list can trade meaningful swap traffic while a 400-subscriber list cannot.
Reviews carry ten points each for a practical reason. Around twenty honest ratings, a store page starts converting cold traffic noticeably better, so each review before that line matters roughly as much as a handful of extra launch sales. This weighting is a planning convenience, not a research finding. Treat the tier as a triage label that tells you where to spend the next thirty days, not as a grade on your book.
Worked numbers with the default inputs
Walk through the defaults line by line so the output stops feeling mysterious. You type 300 launch-week copies, 28 live reviews, and a 2,000-subscriber list. The tool multiplies 28 reviews by ten to get 280, adds the 300 copies, and reaches a score of 580. Since 580 clears the 500 line, the tier is strong. The metrics row shows that label, repeats the 300 copies and 28 reviews for reference, and totals the plan effort at 16 hands-on hours across weeks two through four.
The weekly table then assigns six hours to the week-two promo stack, five hours to the week-three ad test, and five hours to week-four content plus a swap. The illustrative decay table translates the 300-copy start into week-by-week unit counts under two imagined paths. Without action, the columns show roughly 300, then 135, then 75, then 45 copies, following assumed retention rates of 45, 25, and 15 percent. With the plan, the same weeks show roughly 300, then 210, then 165, then 135 copies, following assumed retention rates of 70, 55, and 45 percent. Those percentages are illustrative planning assumptions you can argue with, and arguing with them is part of using the tool well.
Hypothetical example one (illustrative): a steady romance launch
Consider a hypothetical debut romance author, invented purely to show the steady path. Call her Ana. Ana sells 220 launch-week copies, holds 14 live reviews, and owns a 1,200-subscriber list. Her score is 220 plus 140, which equals 360, landing her in the steady band. The planner hands her a week-two stack: one mid-size promo feature booked for Tuesday plus one newsletter swap with a peer romance author firing the same week.
Ana spends week two differently than a strong-tier author would. She emails every launch buyer personally with a short review request, because moving from 14 reviews toward 25 matters more for her conversion than any ad tweak. She runs the swap on Thursday so the two traffic spikes overlap and hold her category rank across the weekend. In week three she tests a single small ad audience with a strict kill rule, pausing the moment clicks cost twice her launch average. Week four brings two short posts answering questions her early readers actually asked, plus one more swap. This entire sequence is illustrative, and Ana herself is hypothetical, but the ordering logic is the point: stack first, prove conversion second, test ads third.
Hypothetical example two (illustrative): a soft nonfiction launch that recovers
Now consider a hypothetical nonfiction author, likewise invented for illustration. Call him Ben. Ben sells 70 launch-week copies, holds 5 live reviews, and owns a 600-subscriber list. His score is 70 plus 50, which equals 120, placing him in the soft band. The planner refuses to glamorize his position. It tells him to spend week two collecting ten new honest reviews before buying traffic, because sending paid clicks to a page with five ratings wastes money.
Ben emails his 600 subscribers individually in small batches, messages every early reader by name, and offers nothing in exchange for a review beyond gratitude and a direct store link. By late week two he reaches 15 reviews. In week three he runs one tiny ad test purely for data, spending little and watching which audience clicks at all. In week four he trades two small swaps with peers near his size and publishes one genuinely useful post drawn from chapter three. His sales never spike dramatically in this illustrative telling, yet by day thirty he owns 20 reviews, two swap partners, and real click data. That foundation is what a second promo month can build on.
What each week of the thirty days is for
Week two exists to prevent the cliff. Its job is booking one more concentration of demand while launch warmth remains. A promo feature, a swap, or a coordinated review push all qualify, and pairing two of them inside the same seven days works better than spacing them out. The plan budgets five to seven hours here because outreach, scheduling, and creative tweaks take real evenings.
Week three exists to learn cheaply. By now the launch spike is gone and the page shows whatever reviews you earned, so a small ad test measures true cold-traffic response. The keyword is small: one audience, one budget cap, one kill rule. If clicks cost double the launch average, the correct move is pausing and redirecting those hours into another swap. Many authors over-invest in week three because ads feel like doing something. The plan deliberately caps this week at three to five hours.
Week four exists to refill the top of the funnel. Fresh content and another swap bring new readers into your world, and a later price move stays in reserve. Publishing two reader-facing posts gives swap partners and social followers something to share besides buy my book. Closing one more swap converts that attention into list growth, which becomes the audience for the next promo. Five hours covers drafting, outreach, and scheduling without consuming your writing life.
Reading the illustrative decay curve honestly
The decay table deserves careful interpretation because percentages can mislead. The without-action column assumes each post-launch week retains 45, then 25, then 15 percent of launch-week unit sales. The with-plan column assumes 70, then 55, then 45 percent. Neither column predicts your book. They translate an abstract worry, sales will fall, into concrete unit counts you can plan staffing and spending around.
Use the table by substituting your own beliefs. If your genre holds attention longer, raise the with-plan rates and see how the month totals change. If your launch was preorder-heavy with no ongoing audience, lower the without-action rates to face the gap early. The value of the curve is comparative: it shows how much retention you must buy with each week of effort. A 300-copy launch that retains 45 percent in week four sells about 135 copies that week, while one retaining 15 percent sells about 45. That 90-copy gap is the prize your sixteen hours chase.
Edge cases the planner handles plainly
Zero launch-week sales still produce a plan. The score lands deep in the soft band, and every recommendation points at direct reader contact and review collection. This is the correct output, because traffic tactics cannot fix an audience of zero. Your first thirty days are really a delayed launch, and the weekly table functions as a launch checklist rather than a momentum defense.
Zero reviews with strong sales is a rarer but real case, common when a free promotion moved thousands of copies to silent readers. The score may still read steady or strong on unit volume, yet the recommendations about promo readiness apply with extra force. Paid features convert poorly below roughly twenty ratings, so convert some of that download energy into review requests before booking the next feature.
A large list with weak sales points at a mismatch between audience and offer. If 10,000 subscribers produced 80 launch sales, the problem is rarely timing. Check the cover thumbnail at small size, read the opening pages on a phone, and confirm the list actually signed up for your genre. The planner will still emit swap-heavy tasks, but treat its output as secondary to diagnosing the mismatch.
A series launch changes the meaning of every number. Read-through multiplies the value of each new reader, so ad tests can tolerate higher click costs and promo stacking pays more. The planner does not ask about series length, so series authors should mentally upgrade their tier by half a step: a steady series launch can justify strong-tier ad testing because books two and three monetize the traffic.
Wide distribution versus single-store enrollment bends week-two choices. Enrolled authors lean on page-read velocity tactics like stacked promos, while wide authors spread effort across stores and lean harder on direct list sales. The weekly structure survives either way, but the specific features you book differ.
Failure modes worth naming before they bite
The most common failure is spending week two analyzing instead of booking. Dashboards feel productive, but rank decays while you study it. Book the week-two feature within days of launch, even if the creative is imperfect. A live mediocre promo teaches more than a perfect plan that ships in week five.
The second failure is discounting too often. Authors who drop the price every week train their small audience to wait, and each successive discount produces a smaller spike. Hold one price move in reserve for week four or later, paired with a booked feature, so the discount arrives with traffic instead of alone.
The third failure is buying ads to cure a review shortage. Cold clicks landing on a page with six ratings bounce, and the author concludes ads never work for their genre. Ads work worst exactly where social proof is thinnest, so sequence reviews first and ads second. The planner enforces this order for soft-tier launches, and steady-tier authors should respect it voluntarily.
The fourth failure is treating swaps as free money. Every swap spends reader attention, and promoting five partners in a month fatigues a small list. Trade fewer, better-matched swaps, track which partners actually send clicks, and say no to mismatched genres. A 2,000-subscriber list that trusts you beats a 5,000-subscriber list that stopped opening.
The fifth failure is quitting content in week three because posts did not sell books. Posts are not supposed to sell books directly. They give swap partners, podcast hosts, and social followers a reason to mention you, and they compound across months. Judge week-four content on replies, shares, and new subscribers, not on same-day unit sales.
Genre-specific guidance for the thirty days
Romance rewards speed and stacking. Readership consumes quickly, also-bought placement moves fast, and newsletter lists in the genre are large and swap-friendly. Steady-tier romance authors should stack aggressively in week two and test ads early in week three, because audience targeting is well understood. A soft romance launch usually signals cover or blurb mismatch rather than audience absence, so compare your thumbnail against current category bestsellers before spending further.
Mystery and thriller reward review count and series hooks. Readers binge, so week-four content that previews the next case converts well. Swap partners abound among midlist peers, and small ad tests on comparable-author audiences give clean reads. Soft launches here often need ten more reviews plus a sharper series promise on the store page.
Fantasy and science fiction reward patience and community presence. These readers sample slowly and trust peer recommendation, so week-two swaps with genuine peers outperform generic promo features. Content that explores worldbuilding or magic systems earns shares that paid clicks cannot buy. Ad tests need longer windows before judgment, so extend week-three tests a few extra days rather than killing them on day two.
Nonfiction rewards proof and searchability. Week-four posts that solve one concrete problem from the book keep working for months through search. Reviews that name specific outcomes persuade better than generic praise, so ask readers what changed for them. Soft nonfiction launches often recover through podcasts and guest posts rather than price promos, so redirect week-three ad hours into pitch emails.
Children's and middle-grade books live or die through adult gatekeepers: parents, teachers, librarians. Newsletter swaps matter less here than school and library outreach, review coverage from parent bloggers, and visibility in gift seasons. Adjust the planner's swap tasks into outreach tasks, keeping the same weekly rhythm but different recipients.
Literary fiction and memoir reward patience most of all. These books sell on voice, prizes, and word of mouth across long arcs. The thirty-day plan still applies, but interpret retention rates conservatively and invest week-four hours in essays, readings, and reviewer outreach rather than discount stacking.
Effort budgeting: where the hours actually go
The plan totals thirteen to sixteen hours depending on tier, and authors should see where those hours land. Week two consumes the most because outreach cannot be batched: each swap pitch, feature application, and review request is a separate message. Expect three evenings of sending, following up, and confirming dates.
Week three is deliberately light on strong and steady tiers because ad tests run themselves once launched. The hours go to checking costs against the kill rule, tweaking one headline or audience, and deciding whether to continue. Soft-tier authors spend even fewer ad hours and redirect the balance into direct reader messages.
Week four hours split between drafting content and closing the final swap. Writing two short posts takes one focused session each if the topics come from real reader questions. Swap outreach takes another session. None of this requires full-time marketing, but it does require calendar entries. Unscheduled hours evaporate.
Tracking these numbers ongoing in Author Desk
One-off plans fade, so the numbers above belong somewhere you will actually revisit. Track launch-week sales, live review count, and list size inside Author Desk at /author-desk, where your book dashboard keeps these figures next to each other month after month. When review velocity stalls or list growth flattens, the same dashboard shows the stall early enough to book the next swap before rank cools. Returning to one familiar page each week turns post-launch marketing from a scramble into a short routine.
Questions authors ask next, answered in depth
How long before judging whether the book works? Give it ninety days and two full promo cycles before declaring the positioning broken. Thirty days measures your execution of the plan, not the book's ceiling. If two stacked features plus twenty reviews still produce no sell-through, the cover, blurb, or opening pages need revision before more traffic.
Should the next book pause while marketing continues? Keep drafting. The highest-return post-launch asset is the next release, especially in series genres. Cap marketing at the plan's hours and protect writing mornings. Authors who market full-time for months often discover they spent a season promoting a stand-alone instead of finishing the series that would have sold it.
Do free days or deep discounts restart momentum? They create spikes, not momentum, unless a follow-up tactic catches the spike. Pair every price move with a booked feature and a swap in the same week, and have the next book or a list magnet ready to catch new readers. Unpaired discounts produce a brief rank blip that decays within days.
How do podcast and guest appearances fit the thirty days? They fit week four best, when you have fresh content to point hosts toward. Pitch five shows or blogs in week three, appear in week four or five, and treat each appearance as a small durable spike rather than a launch event. Nonfiction and memoir benefit most here.
What if a big promo feature rejects the book? Rejection usually reflects review count, cover fit, or timing rather than quality. Note the stated reason, fix what you can in week two, and reapply for a week-six slot. Fill the gap with two peer swaps, which accept newer books more readily. The plan survives a single rejection without redesign.
When does patience become denial? Patience has a testing schedule and denial does not. If each thirty-day cycle adds reviews, grows the list, and improves conversion, continue. If three cycles change nothing measurable, stop buying traffic and revise the package. The dashboard habit described above makes this distinction visible instead of emotional.
Building the second thirty days from the first
At day thirty, rerun the planner with fresh numbers. Most authors graduate one tier: soft launches reach steady through new reviews, and steady launches reach strong through list growth. The second plan looks different because the inputs changed, and that is the mechanism working as intended. Keep the weekly rhythm, rotate swap partners so lists stay fresh, and reserve one new tactic per cycle, such as a first podcast run or a first multi-author promo, to keep learning without chaos.
A short pre-flight checklist before week two starts
Confirm the store page converts before buying traffic. Read the blurb aloud and cut any sentence that summarizes instead of intriguing. View the cover at thumbnail size on a phone, because most shoppers never see it larger. Open the sample and check that chapter one starts with motion rather than backstory. These three checks take one evening and raise the yield of every later hour.
Confirm tracking is in place so the thirty days teach you something. Note current daily sales, review count, list size, and ad cost per click on the day launch week ends. Record the same four figures each Sunday. Without a baseline, week-four debates about what worked become guesswork, and authors repeat the tactics they enjoyed rather than the ones that moved units.
Confirm calendar holds for outreach. Swap partners answer faster when you propose exact dates, feature applications need lead time, and review requests land better mid-week than on weekends. Blocking two evenings in week two for sending messages prevents the whole plan from sliding. Momentum planning is mostly scheduling discipline with a little arithmetic on top.