Privacy policy
Last updated September 2026
The Book Engine is operated by Kate Marshall. This policy describes what we do with your manuscript and your personal information.
Your manuscript
Your manuscript is used only to create your package. It is not used to train AI models, it is not shared with other customers, and it is not sold or licensed to anyone.
- Your file is transmitted over an encrypted connection and stored securely while your package is being produced.
- It is processed by Anthropic's Claude API under that provider's commercial terms, which do not permit customer inputs to be used for model training.
- The manuscript text and the working files derived from it are deleted within 30 days of delivery. You can request deletion sooner at any time by emailing us.
- The structured outputs built from your book — your atom database, voice profile, and content library — belong to you.
What else we store
- Your name and email address, so we can identify your order and deliver your package.
- Your intake choices — book title, audience, goal, brand style, and the content families you selected.
- Your order record, including status and delivery history, kept for accounting purposes.
We do not store payment card details. Payments are processed by Stripe, which handles card data directly under its own terms.
Service providers
We use a small number of processors to run the service: Cloudflare (hosting, database, and file storage), Anthropic (content generation), Stripe (payments), Resend (transactional email), and Google Drive (package delivery to the folder shared with you).
Access without a password
The Book Engine has no customer passwords. You receive a private link by email that opens your intake and, later, your delivery portal. Treat that link as you would a password — anyone who has it can see your package.
Your rights
You can ask us at any time to show you what we hold about you, correct it, or delete it. Deletion of your manuscript and package data is honoured within 30 days; order records may be retained where required for tax and accounting.
Contact
Questions, deletion requests, or anything else: kate.b.marshall@gmail.com.