NotebookLM is getting better at handling your e-books
Source: Android Authority
TL;DR
- NotebookLM now supports EPUB files, allowing users to upload reflowable e‑books and study guides as sources without needing to convert them into PDFs.
- Custom Infographic styles have rolled out to all users, featuring 10 distinct visual themes, such as Kawaii and Bento grid.
EPUB Support
NotebookLM announced on X that it can now accept EPUB files as sources, allowing users to upload books, study guides, novels, and more in this popular file format.

EPUB (sometimes stylized as ePub) is an open‑standard file format primarily used for e‑books, intended to support reflowable content that adapts across screen sizes. It’s a popular alternative to PDFs, which have a fixed layout that doesn’t adapt to different devices. With this update, users no longer have to choose between PDF and EPUB when building notebooks in NotebookLM.
Custom Infographic Styles
NotebookLM also announced on X that Custom Infographic styles have now rolled out to all users.

All users can now choose from 10 specific styles for generating infographics:
- Sketch
- Kawaii
- Professional
- Scientific
- Anime
- Clay
- Editorial
- Instructional
- Bento grid
- Bricks
Additional options include:
- Orientation: landscape, portrait, or square
- Information level: Concise, Standard, or Detailed
- Free‑form description to guide the AI on style, color, focus, and more.