Indie publishing, demystified.
Expert guides and real-world tips for authors who want to sell more books on Amazon KDP — without the guesswork.
Paperback vs Hardcover on KDP in 2026: Costs, Royalties, Decision Framework
The format question is arithmetic, not ideology. This 2026 guide runs the print-cost math, the royalty math, the spine width formulas, and a 5-book case study so you can pick paperback, hardcover, or both with the actual numbers in front of you.
Danielle Okonkwo
Word Search Book Themes That Sell on KDP (2026 Playbook)
Theme is the most important commercial decision a KDP word search publisher makes. This is the working playbook for picking evergreen, seasonal, niche-collector, and demographic themes that actually sell, with a step-by-step keyword research workflow you can run before you commit to a book.
Large Print Word Search for Seniors: KDP Design Specs (2026)
Senior-friendly word search books outsell mainstream titles when the typography, grid density, and theme are built around aging eyes and the gift-buying adult children who pay for them. Here is the full design and listing playbook.
Create Maze Puzzle Books for Amazon KDP: 2026 Playbook
Mazes are the most underpriced opportunity on KDP in 2026. Word search is saturated, sudoku is competitive, but maze books for kids still have winnable themed sub-niches with 200 to 800 competing titles. Here is the playbook to launch a ranking series in 30 days.
Puzzle Book Interior Formatting for KDP: 2026 Spec Sheet
The five interior formatting mistakes that kill puzzle books on KDP are not creative decisions. They are spec errors. This is the complete spec sheet for 8.5 x 11 inch puzzle book interiors, with the exact margin, gutter, font and bleed values that pass review on the first upload.
Preschool Workbooks for KDP: 2026 Age 3 to 5 Design Playbook
Preschool workbooks are the highest-volume kids non-fiction category on KDP. Single-task pages, mostly B&W with selective color, mascot-led covers, and clean age-3-to-5 progression separate the books that earn from the ones that bounce. Full playbook below.
Handwriting Practice Books for KDP: 2026 Age-Band Design Playbook
Handwriting practice books are one of the most underrated evergreen niches on KDP. Age-band targeting, correct line conventions, and parent-trustable covers separate $400 a year titles from $4,000 a year titles. Here is the full 2026 playbook.
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