Los Angeles University has over 1800 children's ebooks in English for free language, which you can download or read online.
The collection contains classic books such as Cinderella and The Wizard of Oz, as well as poetry, educational and fantasy ebooks. You can read them online or download them in a wide variety of formats, including EPUB, Kindle, PDF and more.
On the UCLA website (Los Angeles University) you will find books with a year of publishing from 1728 to 1999. The newer books are probably the minority. The oldest ones even contain illustrations on wood. All the books we tested (the oldest ones) had readable text in an image format, although some were a bit dark.
Books can be sorted by title, date publication and author. You can search using themeda, year, collection or creator. THE default display are thumbnails but you can also view them as a list.
Books are printable in PDF format, although the pages will vary in size. See the online library from here (UCLA collection of children's books)