The education industry is a huge industry. Governments spend loads of money on it. Everybody goes to school to try to better their lives.
There are loads of educational products on the market all the way from software to essays for sale.
There are some miscellaneous education ideas like clip art, educational videos, shareware, etc.
There's a big load of education websites in this book in the Education Websites Master List section.
Education books at the library go from #370-#379 or L of the Library of Congress system. Your library has a wealth of information including magazines, audio-visual materials and access to the internet.
They might have a separate reference section for college education and test taking books like how to study for the GED, SAT, LSAT, GRE or things like civil service exams.
There are some educational libraries at teacher's colleges and colleges that offer the major of Education to people who want to become teachers.