This book is an excellent summary of bat research from around the world in relation to various impacts and initiatives from artificial roost construction to wind turbine mitigation. It addresses and summarises the key findings for each and highlights where there are gaps, and it turns out there are a lot of gaps. The review also assesses the validity of the research found to see if it has been or can be replicated, highlighting where more work is needed before conclusions can be drawn fully. This is a must read for anyone working with bats, be it as conservationists, consultants, researchers or surveyors (or anything else for that matter).