This case study book provides 30 cases and responses from 90 OD consultants with expertinsights specific to each particular case topic. This book is the culmination of ten years ofcollaboration between the Homer Johnson, Peter Sorensen and Therese Yaeger, and the ODNetwork that originally printed these cases in the OD Practitioner. Now with the 30 case studiescompiled in one OD resource book, both practitioners and academics can experience an ODchallenge and value the differing responses from OD experts.