Terms of Use
These terms cover the use of bookbird.io: its free tools, templates and guides, readers’ accounts and the Interior Library. By using the site you accept them.
Free to Use
The tools, guides, free templates and readers’ accounts are free. The one thing for sale is the Interior Library, described below.
Tools and Estimates
The calculators give estimates based on the rules and figures each tool describes on its own page, such as Amazon KDP's published printing costs and royalty rates. Amazon and other platforms change their rules, and your own results can differ. Check important numbers against the platform you publish on before you rely on them.
Templates
You may use the free KDP interior templates in books you publish, including books you sell. You may not resell or redistribute the template files themselves, alone or as part of a template collection.
The Interior Library
The Interior Library is a paid download of KDP interiors and covers. Payment is taken by Link, Stripe’s checkout, which sells it to you as the seller of record and sends the receipt; the files are then in your BookBird account, under the email address you paid with. The license that comes with the files lets you publish and sell books made with them under your own name, as many as you like, and edit them freely. It does not let you resell, share or give away the files themselves, edited or not, or include them in a bundle, course or membership of your own.
If the library is not for you, email [email protected] within 14 days of buying and we refund the full price; access to the files ends with the refund. The files are built to Amazon KDP’s published specifications, but KDP reviews every book itself, so check the Print Previewer before you publish.
Guides
Guides are general information about writing and self-publishing, not legal, tax or financial advice. Text and images on the site may not be republished without permission; short quotations with a link back are fine.
Links
BookBird links to other websites. We are not responsible for their content or their terms.
Trademarks
Amazon, Kindle and KDP are trademarks of Amazon.com, Inc. or its affiliates. Other product names belong to their owners. BookBird is not affiliated with Amazon or with the products it describes.
Liability
The site is provided as it is. We work to keep it accurate, but we cannot promise that every result or statement is correct or that the site is always available, and we are not liable for decisions made on the basis of it.
Changes and Contact
These terms may be updated; the current version is always on this page. Questions: [email protected]. Last updated: October 23, 2026.