OS2 Project Store › OS² Project Workbook Image 1 of 3 Image 2 of 3 Image 3 of 3 OS² Project Workbook $95.95 This workbook is designed to challenge students to understand the how, what, and why underlying success. Quantity: Add To Cart Added! This workbook is designed to challenge students to understand the how, what, and why underlying success. Click here to see the Table of Contents and Introduction