|Other Retailer||Price Checked Time||Their Price in AUD||Our Price|
|Amazon UK||3 days ago||38.51||$29.89||You save $8.62|
|Amazon US||5 days ago||35.54||$29.89||You save $5.65|
|Book Depository US||yesterday||32.91||$29.89||You save $3.02|
Lindsay David is a co-founder of clean technology company GreenRigCo and a former strategy & business development consultant. Lindsay holds an MBA from IMD Business School.