Books – Be on the Right Side of Change

KDP AI Book Cover Math: 25 Designer Covers Cost $20,000, a Hybrid $4,000

October 24, 2026 by Michael

Featured bar chart: cover spend for a 25-book KDP portfolio (5 series of 5): $800 Reedsy romance median on every book costs $20,000 and 7,435 sales at $3.99 to pay back; $250 per cover costs $6,250 (2,324 sales); a hybrid with $800 only on each Book 1 costs $4,000 (1,487 sales); AI covers cost $0 cash

KDP AI book cover rules and math: disclose AI images, use 1600×2560. 25 designer romance covers cost $20,000; a hybrid $4,000. Python payback calculator.

Multiple Pen Names on KDP: 3 Names Turn a 25-Month Path to 25 Books Into 75 Months

October 24, 2026 by Michael

Featured bar chart: at one book a month, one pen name reaches 25 books in 25 months, two pen names need 50 months each and three pen names need 75 months (6.25 years); dark segments show 10, 20 and 30 months to 10 books

Multiple pen names on KDP? KDP allows them, but at 1 book a month 3 names need 75 months to reach 25 books each. When splitting pays, with Python math.

Best AI for Writing a Book Series: Book 5 Needs 213,000 Tokens of Memory

October 23, 2026 by Michael

Featured chart: tokens of earlier books an AI must hold before writing Books 2 to 10 of a 40,000-word-per-book series, rising from 53,333 to 480,000; Book 5 is highlighted at 213,333 tokens, above a 200k-token context window, while a story bible stays at 4,000 to 36,000 tokens

The best AI for writing a book series needs memory: by Book 5, Books 1-4 are 213,000 tokens. Why a story bible beats a bigger window, with Python math.

How Often Can You Publish on KDP? 3 a Day Max, but Monthly Hits 25 Books in 25 Months

October 22, 2026 by Michael

Featured chart: months to reach 25 live KDP books by release cadence: 300 months at one a year, 75 quarterly, 50 every two months, 25 monthly (highlighted) and 12 every two weeks; 25+ books is where Written Word Media's 2025 survey finds a median of about $3,000 a month

How often can you publish on KDP? Up to 3 new titles a day, but 25+ books matters more: one a month gets you there in 25 months. Python math inside.

How to Price KDP Ebook Series: $3.99 Wins Alone, a $0.99 Book 1 Earns 2.1× on 5 Books

October 22, 2026 by Michael

Featured chart: royalties per 100 promo shoppers on a five-book KDP ebook series by Book 1 price, Books 2-5 at $4.99: $749 at $0.99 (highlighted, 2.1 times $3.99), $392 at $1.99, $340 at $2.99, $363 at $3.99 and $239 at $4.99

How to price KDP ebook series: $3.99 earns most for a standalone, a $0.99 Book 1 earns 2.1x across 5 books, and paid ads favor $3.99. Python model inside.

How to Get More Kindle Unlimited Page Reads: 4 Levers Stack to +74% on One Series

October 21, 2026 by Michael

Featured chart: KU page-read uplift per lever on one five-book series: +10.0% for 10% more Book-1 readers, +10.4% for raising Book 1 to Book 2 read-through from 65% to 75%, +13.7% for adding Book 6, +25.0% for 50,000- instead of 40,000-word books, and +74% for all four together (highlighted)

How to get more Kindle Unlimited page reads: fix Book 1 to 2 read-through, add Book 6, write full-length books, then buy readers. Stacked: +74% page reads.

How Many KDP Books to Make Money? At 25+ Books, the Median Is $3,000/Month

October 21, 2026 by Michael

Featured chart: average books published by author income stage (Written Word Media 2022): 5 books at $0-249 a month, 10, 23, 28, 28, 45, 45 and 50 books above $10,000 a month, with a dashed line at 25 books and the 2025 median of $3,000 a month for authors with 25+ books highlighted

How many KDP books to make money? Survey data says about 25: authors with 25+ books earn a median $3,000/month. Napkin math, a Python calculator and charts.

Best AI for Writing Romance Novels: A 5-Book KU Series Pays Back at 33 Readers

October 20, 2026October 20, 2026 by Michael

Break-even chart for a 5-book Kindle Unlimited romance series: income of $3.07 per Book-1 reader crosses the $100 Publisher-plan drafting cost at 33 readers ($150 plan: 49, $75 plan: 25).

Best AI for writing romance novels? Pick the one that remembers Book One. 2026 KU math: a 5-book series pays back its drafting cost at 33 readers.

How Many Poems Should Be in a Chapbook? 20 to 30 (25-30 Pages Fits 11 of 13 Contests)

October 20, 2026October 20, 2026 by Michael

Bar chart of how many of 13 chapbook contests accept each manuscript length: 25 to 30 pages of poems qualifies for 11 of 13 contests, 24 pages for only 9.

How many poems should be in a chapbook? I checked 13 contest rules: 25-30 pages of poems fits 11 of them. That’s 20 to 30 poems, depending on poem length.

How to Create a Cookbook for Fundraising: 150 Recipes, 200 Copies, Break Even at Copy 55

October 20, 2026October 19, 2026 by Michael

Break-even line chart for 200 fundraising cookbooks sold at $12 with a $650 Morris Press print bill: profit turns positive at copy 55 and reaches $1,750 if all 200 sell.

How to create a cookbook for fundraising: 50 cooks x 3 recipes, 200 copies for $650 at Morris Press, $12 each. Copy 55 pays the printer; a sell-out nets $1,750.

How Many Words per Chapter in a Cozy Mystery? 2,200 (I Counted 283 Agatha Christie Chapters)

October 20, 2026October 18, 2026 by Michael

Histogram of words per chapter across 283 chapters in 10 Agatha Christie novels: median 2,208 words, 80% of chapters between 1,288 and 3,639 words.

How many words per chapter in a cozy mystery? About 2,200: Christie’s 283 chapters have a median of 2,208. Plan 28-32 chapters for a 60-70k cozy.

How Long Should a Daily Devotional Be? 150 to 300 Words (Spurgeon Averaged 341)

October 20, 2026October 17, 2026 by Michael

Histogram of word counts of all 732 readings in Spurgeon's Morning and Evening, median 341 words, against editor limits of 150-200 (The Secret Place) and 250-300 words (The Upper Room).

How long should a daily devotional be? Editors want 150-300 words; Spurgeon averaged 341. Past 233 words, a 365-day book doubles to 730 pages.