AMSER (Applied Math and Science Education Repository) is a portal of educational resources and contains a wide variety of resources for architecture and design

Archnet provides open access to a unique set of resources related to the built environment of the Muslim world. The Collections tab includes architecture archives, exhibitions, projects

Art History Teaching Resources (AHTR) is a peer-populated platform for educators who use visual and material culture in their teaching practice

Open textbooks that have been reviewed by faculty, are accessible and include additional materials such as quizzes, test banks, slides and videos

Lesson plans and curriculum resources for educators

A curated collection of textbooks and resources for Architecture and Design studies

The Open Textbook Library provides a growing catalogue of free, peer-reviewed, and openly-licensed textbooks

Project Gutenburg collection of public doman architecture and design titles.

Public domain literary works made available in online, epub, pdf and editable formats.