While our major mission is to distribute ebooks--because they are less expensive, in color and may include videos--we find that some readers prefer traditional print books, so many of our books are available as black and white or color books. Black and white books usually cost about twice as much as ebooks plus the shipping charges. Color books are usually four or more times as expensive as the ebooks.
Ebooks do not have page numbers--because they are read on smart phones and tablets, so the page numbers would not show on some screens then they would come in the middle of a page later. On PDF files from Kno and on the print books, the page numbers will be included.
Ebooks are available through Intel Education (Kno.com) and are usually discounted 10 to 15% from the list price. KNO is effective in selling a book and app specific to the capabilities of your reading device.
Amazon.com is the world's largest seller of ebooks and print books. They generally charge the list price but sometimes add a small percentage to the list price. Amazon also sells the print editions of the books. If your reader handles only black and white you will miss the color attributes.
Create Space bookstore sells the available printed versions of the books.
(The links for many of the books are included in the following pages.)
The books are also available through: Apple, Barnes & Noble, Kobo, Scribd, Page Foundry and other channels.