Many children's books have been digitized and made available online to the public through a variety of sources, including specialized collections such as the Baldwin Library of Historical Children's Literature, as well as from more general collections such as Project Gutenberg and the HathiTrust Digital Library. Search these resources by title to discover digitized copies of classic titles.
One of the strengths of digital collections is that they make it possible to compare a number of editions with the click of a mouse. Below is a small selection of available comparative editions of classic titles from the digital collections on this page. Remember, this is just a small selection, so if you can't find what you're looking for, please ask a librarian for help!