"A lot of information is stuffed into these compact packages. The history of Bitcoin, a peer-to-peer currency, and its fluctuating value is discussed thoroughly in Cryptocurrency, including the issues inherent in the decentralized format, like theft through hacking, loss of hard drives, keys, or passwords, and its connection to the dark web and crime. Online Search describes the history of the web and the evolution of computers, as well as privacy concerns and next-gen search features. Solar Energy explores how we can harness that renewable. The history of space travel in Reusable Rockets goes from Sputnik to SpaceX, which finally allows humans to send a rocket to space and back. The informative writing is not particularly exciting but will impart a ton of information.

VERDICT Suitable for research but not great for browsers. An additional purchase."—School Library Journal – Series Made Simple (Nov 2019)