(4) 4-6 Illustrated by Ian Turner. Birmingham examines various means used to uniquely identify people--from fingerprints, faces, and voices to odors and signatures. The technologies used to collect each biometric, the historical development of these technologies, and the relative strengths and weaknesses of each are discussed in a lively narrative. Each spread is jam-packed with text boxes and cartoony illustrations. Bib., ind.

Reviewer: Danielle J. Ford