Not all newsletters are created equal when it comes to e-reader reading. The best Substacks for Kindle are the ones with long-form, text-rich posts — writing that benefits from focused, distraction-free reading on e-ink.
We've curated this list based on what actually reads well as an ebook: deep reporting, thoughtful essays, and meaty analysis. These are newsletters where the archive is as valuable as the latest post — making them perfect candidates for conversion to EPUB.
Every newsletter listed here has a substantial free archive that you can convert to EPUB with Stack to Book and read on your Kindle, iPad, or any e-reader.
Long-Form Journalism & Reporting
In-depth investigative and narrative journalism — the kind of writing that reads like a book chapter.
Technology & Science
Technical deep dives and analysis — dense, information-rich writing that benefits from focused e-reader sessions.
History & Culture
Thoughtful, well-researched essays on history and cultural phenomena. Perfect for slow, offline reading.
Personal Finance & Business
Smart financial thinking and business strategy — reference material you'll want to revisit.
Writing & Creativity
On the craft of writing, storytelling, and creative work. Inspiring reads for your own practice.
What Makes a Newsletter Great on Kindle?
- Long posts — Short blurbs don't justify the conversion. Look for 1,500+ word posts
- Text-first content — Newsletters heavy on images or charts work better on tablets than e-ink
- Deep archives — The more posts, the more book-like the result. 50+ posts makes a substantial ebook
- Evergreen writing — Posts that hold up over time make the best ebooks. Breaking news doesn't age well as a book chapter
- Consistent quality — An archive where every post is worth reading makes for a cohesive book
Browse Converted Books
Want to see what these newsletters look like as ebooks? Browse our public gallery to preview books others have already converted. You might find your next favorite read.