The Orange Grove "is an online library of free instructional resources for Florida's educators."
"Orange Grove Text Plus (OGT+) is a joint initiative of the University Press of Florida and The Orange Grove, Florida’s Digital Repository. The goal of this partnership is to reduce the cost of books to students by offering texts that are affordable, accessible, and adaptable to reader preferences.
Orange Grove Texts Plus delivers access to a wide range of textbooks in a choice of electronic or bound book formats. These books are priced at 40-50% less than similar textbooks purchased at retail outlets, including online discounters.
OGT+ uses open textbooks which are free, online, open-access textbooks. The content of open textbooks generally is licensed to allow anyone to use, download, customize, or print without expressed permission from the author. Open textbooks are available online for free, so all students have equal access to the content. Open textbooks can also be downloaded and printed to accommodate different instructional preferences. OGT+ also includes a number of scholarly monographs offered for free online access by the University Press of Florida and collaborating authors."