|Other Retailer||Price Checked Time||Their Price in NZD||Our Price|
|Amazon UK||yesterday||69.48||$43.41||You save $26.07|
|Amazon US||yesterday||55.32||$43.41||You save $11.91|
Allen Downey is an Associate Professor of Computer Science at the Olin College of Engineering. He has taught computer science at Wellesley College, Colby College and U.C. Berkeley. He has a Ph.D. in Computer Science from U.C. Berkeley and Master's and Bachelor's degrees from MIT.