The Natural History of the Edwards Plateau: The Texas Hill Country (Integrative Natural History Series, sponsored by Texas Research Institute for Environmental Studies, Sam Houston State University)

This is a good read, but it is pretty much taken verbatim from Chapman’s earlier book “The Natural History of Texas” (same text, same figured). If you don’t have that book and/or are just interested in this region, then this book is for you - otherwise buy the complete book.