The AIM Open Textbook Initiative encourages the development, improvement, and adoption of open source and open access mathematics textbooks. The AIM Editorial Board has developed evaluation criteria to identify the books that are suitable for use in traditional university courses. The Editorial Board maintains a list of Approved Textbooks which have been judged to meet these criteria.

The Open Textbook Initiative is part of UTMOST (Undergraduate Teaching in Mathematics with Open Software and Textbooks), a project funded by the National Science Foundation.

  • Approved Textbooks   The list is organized by courses ranging from pre-calculus to upper division analysis and algebra. Each book has a brief description of its important features and information about how to get it.
  • Evaluation Criteria   There are a number of features that the Editorial Board considers in evaluating textbooks.
  • Guide for Authors  Here is some advice on questions facing open textbook authors.
  • Editorial Board   The AIM Editorial Board develops the criteria for acceptance and reviews open textbooks.

Open access curriculum material for inquiry based learning courses can be found at
The Journal for Inquiry Based Learning in Mathematics.

Questions or comments to

Partial support for this work was provided by the National Science Foundation’s Improving Undergraduate STEM Education (IUSE) program under Award No. 1626455. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the Editorial Board and do not necessarily reflect the views of the National Science Foundation.