Humble Bumble Ebooks
Humble Bumble offers a great price on their Braniac book bundle which includes a variety of books on interesting topics that include computer programming and computer science. You can name your price for the minimum number of books in the bundle, or if your offered price is at least the amount listed for the additional unlocked bundles, then you get them all. The ebooks are DRM-free and available in multiple formats for your e-reader of preference. Buying just one of these books separately on other sites like Amazon is already more than the bundle price, so it’s a great deal!