Free Books

Free books for AI builders and product teams

A curated library of open-licensed books, guides, and playbooks on AI, product, design, and engineering. Download what you need and organize it in your workspace.

Curated licensing

Only open or author-approved licenses with clear reuse rights.

Readable formats

PDF and EPUB formats with quick previews and summaries.

Updated weekly

New titles vetted for quality, clarity, and practical value.

Featured book picks

Highlights from the library to get you started.

Open-licensed
AI & LLMsPDF

Prompt Engineering Playbook

A practical guide to designing structured prompts and evaluation loops.

ProductPDF

Modern Product Specs

Frameworks and templates for crisp PRDs, user stories, and acceptance criteria.

DesignEPUB

Design Systems Starter

Build scalable design systems with tokens, components, and governance tips.

MarketingPDF

Analytics for Growth

Measure funnels, experiments, and retention with real-world metrics examples.

EngineeringPDF

Engineering Leadership Notes

Processes, team rituals, and documentation that ship reliable software.

ContentPDF

AI Content Toolkit

Editorial workflows, briefs, and QA checklists for AI-assisted content.

How to use this library

Find the right resource, verify licensing, and store it in your workspace.

1

Browse by category

Filter by topic to find books that match your role and current project.

2

Check licensing

Every book is tagged with its license and usage rights so you can reuse safely.

3

Download & organize

Save PDFs or EPUBs and keep them in your AiFolder collections.

Build your team library

Save your favorites, share internally, and keep the most useful playbooks in one place.

Organize in notes
FAQ

Using the book library

?Where should I check the edition and download format?

Open the linked book source and confirm the edition and available format there. A listing may point to a reading page rather than a downloadable file.

?Can I redistribute a book found in this library?

Do not assume so. Check the source license or permission before sharing a copy; sharing the listing link and redistributing the book are different actions.