Arranged chronologically, the three-page entries in this engaging work begin with the date of the invention and name of the inventor. These are followed by a narrative on the importance and history of the item, the scientist's process, and a description of how the invention has developed over time. The author's stated criteria for inclusion are that the invention was based in science, it was an invention rather than a discovery, and that it has had great ramifications for society….[t]his is a good resource.