Who uses online earth science textbooks?

Online earth science textbooks are valuable resources for students of all ages, though they are generally most used by high school or post-secondary students. Both traditional and non-traditional students, as well as casual researchers, use online earth science textbooks.

Some online earth science textbooks provide comprehensive overviews of the field and teach basic concepts, while others go deeper into specific facets of the field and teach more specialized information. Some textbooks are specifically designed to supplement in-classroom learning, but many are packaged as self-contained courses that feature everything from lessons to self-administered exams for students to test their own progress.