You can learn about life by observing other species - thats what Humphrey was told when he was bought as a classroom pet for room 26. In addition to his classroom escapades, he gets to sleep over with a different pupil each weekend, learning how to read, write and shoot rubber bands in the process. Paperback , 142 pages Published December 1st 2006 by Faber & Faber (first published 2004)