KDP vs Draft2Digital: D2D Keeps 50 Cents of Every $4.99 Ebook, So Route Each Store Separately
KDP vs Draft2Digital: KDP pays $3.39 on a $4.99 Amazon ebook vs $2.99 via D2D. Per-store math shows where D2D’s 10% fee is worth paying.
Books
KDP Trim Size Calculator: I Typeset 3 Novels at 7 Sizes, and 5 x 8 Costs $1.37 More per Copy Than 6 x 9
KDP trim size calculator built on 3 novels typeset at 7 sizes: 5 x 8 needs up to 50% more pages and costs $1.37 more per copy than 6 x 9.
KDP Delivery Fee: $0.15 per MB Costs a Text Novel Pennies and an Illustrated Edition Up to $7.08
KDP delivery fee: $0.15 per MB on 70% sales. 13 real ebooks measured, the break-even file size for your price, and when 35% pays more.
KDP Hardcover Calculator: Your Hardcover Needs a $7.75 Higher Price Just to Match the Paperback
KDP hardcover calculator: printing cost, minimum price and royalty for any page count, and why a hardcover must cost $7.75 more to match your paperback.
KDP Preorders Don’t Stack on Launch Day: 300 Spread Over 30 Days Rank Like 10 Sales a Day
KDP preorders count toward rank as they arrive: 300 over 30 days rank like 10 sales a day. 2026 rules, the $0.99 price trap, and when to use them.
KDP vs Barnes and Noble Press: Same Ebook Pay From $2.99 to $12.99, Double Outside It
KDP vs Barnes and Noble Press: same ebook pay from $2.99 to $12.99, but B&N pays 2x on 99c and $14.99 box sets. KDP wins paperbacks by $0.99.
How Long Should a Romance Novel Be? A 50,000-Word Book Can Pay 82% More per Word Than a 91,000-Word One
How long should a romance novel be? 50k–100k words: Harlequin’s median is 55k, Amazon’s top 100 average 91k. Why shorter pays 82% more per word.
KDP AI Translation Is Free, but Translating Only Book 1 Leaves 64% of the Money on the Table
KDP AI translation (Kindle Translate) is free in beta. A human translation needs 3,683 sales to break even; why translating only Book 1 loses 64%.
IngramSpark vs KDP: The Same $14.99 Paperback Pays $4.39 on KDP and $0.75 at IngramSpark’s 55% Discount
IngramSpark vs KDP in 2026: a $14.99 paperback pays $4.39 on KDP vs $3.00 or $0.75 via IngramSpark. Per-copy math, hardcovers, and the hybrid setup.
Is BookBub Featured Deal Worth It? Book 1 Alone Needs 66% of Clicks to Buy, a 5-Book Series Needs 4.7%
Is a BookBub Featured Deal worth it? At $0.99 a standalone needs 66% of clicks to buy; a 5-book series needs 4.7%. All 44 categories, with real fees.
Best AI for Writing Fantasy Novels: A 120k-Word Epic Earns 2.4× a Novella per KU Read
Best AI for writing fantasy novels: a full KU read of a 120k-word fantasy pays $3.39, 2.4x a novella. Pick a tool that keeps 120k words consistent.
Is Expanded Distribution on KDP Worth It? One Amazon Sale Equals ~3 Expanded Copies at $14.99
Is Expanded Distribution on KDP worth it? At $14.99 keep $2.12 vs $5.11 on Amazon (~3 ED copies); at $9.99 ED pays $0.12.