We have been waiting for that book for a long time. Peggy Holman's Change Handbook is now available in its second edition. Since its first edition in 1999, it has increased in volume and in significance. Peggy and her co-authors describe 61 collaborative methods that can be applied for working with large groups in private corporations, the public sector and for the development of democratic institutions. The book provides more than a thesaurus and an encyclopedia of change - it contains probably more than 90% of the current world knowledge on whole systems change applications. Beside the well-known methods and frameworks such as Open Space Technology, Appreciative Inquiry, etc. there are a lot of new methods that I have never heard of. Unfortunately, there is no article on Worldwork and the Process Oriented Psychology Framework. Next Edition, please?
The Change Handbook is very well organized, methods are categorized and there are good hints for when to apply the different methodologies. It is a must for Change Practitioners. If you are keen on The Standard Reference, you need to buy The Change Handbook.