Gr 6–9—It's not a leap to assume that most kids and teens today have interacted with some kind of software on a computer, tablet, phone, or video game. As the series title indicates, code is powerful. These books introduce readers to programming languages, such as Ruby and Python, as well as software that teaches programming, including Alice and Hackety Hack. Don't confuse these with tutorial guides, though; students won't learn "how to" from these books. They function more like extended, in-depth reviews, giving readers some background on the program or language in addition to practical advice on how to get started. A glossary, bibliography, and list of online resources make each book an especially useful resource for any library serving aspiring coders.