|Other Retailer||Price Checked Time||Their Price in AUD||Our Price|
|Amazon UK||8 days ago||68.46||$41.67||You save $26.79|
|Amazon US||7 days ago||43.84||$41.67||You save $2.17|
|Book Depository US||today||41.8||$41.67||You save $0.13|
Jamis Buck is an alumnus of the Ruby on Rails core team, and has worked at Basecamp (formerly 37signals). He's been active in open source for years, and has a deep passion for learning. Some years ago he began researching and writing about maze algorithms, and the bug never left him. He's probably lost in a maze somewhere, right now.