Google has updated its Google Play Books app, adding support for both rental books and textbooks, which were added today to the Google Play Store. Textbooks can be rented or purchased via the website, and then accessed in the iOS app itself. Once added to a personal book list on the website, the textbooks will show up in the app, though they will be displayed in the same section as regular books. Google first announced its plan to include textbooks in its Google Play Store at its I/O conference earlier this year as part of its Google Play for Education initiative, designed to get Google products into schools. Apple too has been
