These books have been reviewed by faculty from a variety of colleges and universities to assess their quality. These books can be downloaded for no cost, or printed at low cost. All textbooks are either used at multiple higher education institutions; or affiliated with an institution, scholarly society, or professional organization.

InTech publishes more than 2,300 open textbooks and 6 journals in a variety of subjects that fall under the heading of science, technology, and medicine.

Bookboon.com contains free eBooks and textbooks that can be downloaded as a pdf, no registration needed. These books cannot be altered, but can be freely printed, shared, or embedded in non-commercial ways. They are intended only for individuals, colleges, and schools.

Free textbooks (aka open textbooks) written by knowledgeable scholars are a relatively new phenomenon. Below, find a meta list of Free Computer Science Textbooks, part of our larger collection 200 Free Textbooks: A Meta Collection. Also see our online collection, 1200 Free Online Courses from Top Universities.

MIT OpenCourseWare (OCW) is a web-based publication of virtually all MIT course content. OCW is open and available to the world and is a permanent MIT activity.

The Computational Science Education Reference Desk (CSERD) is a Pathways portal of the National Science Digital Library and funded by the National Science Foundation. CSERD aims to help students learn about computational science and to help faculty and teachers incorporate it into the classroom.