Senses of Void logoSenses of VoidFree vault
All free resources
Books

OpenStax Peer-Reviewed Textbooks

University textbooks in psychology, maths, economics and more.

Openly licensed, peer-reviewed textbooks used by real universities. The psychology and statistics volumes are the ones most people here come back for — proper foundations, not blog summaries.

textbookspsychologystudy

What you get

  • PDF / web — delivered from the official source, always the latest version.
  • Licence: Creative Commons. Safe to use in personal and client work.
  • No signup, no email wall, no download manager.

More free Books resources

BooksProject Gutenberg Library

70,000+ public-domain books in EPUB and Kindle formats.

EPUB / MOBI / TXT · CC0 / public domain

BooksStandard Ebooks

Public-domain classics, typeset properly.

EPUB · CC0 / public domain

BooksOpen Library

Catalogue and legal borrowing for millions of titles.

Web reader · Library lending

LearningKhan Academy

Maths, science and economics from basics to advanced.

Course platform · Free tier — no card required

See the full Books collection

People also grabbed

DesignUnsplash Photo Library

High-resolution photography, free for commercial use.

JPEG downloads · Unsplash License

DesignLucide Icon Set

1,400+ consistent open-source SVG icons.

SVG + npm package · ISC / open source

Next packarXiv — Open Research Preprints