The letter L is the primary call number range for subjects in Education. LB will cover most aspects of Secondary Education.
You might also find books in the Young Adult Collection to be helpful, including fiction and non-fiction materials. Other sub-topics in education may include psychology, history, or biography. Some materials may be in e-book form.
For better targeted browsing, use the catalog to identify several books that relate to your area of interest and look in the library call number sections that contain those books.
Other ebooks from around the web.