Collection Development and Management for 21st Century Library Collections

The bones of this book are good, but the material dates itself pretty quickly. There's a number of references to websites, plan providers, and other specific resources that either no longer exist or no longer provide the resource indicated.

All that said, the very basics of collection development are discussed here, but I stress the point that every library is different. No book can tell you what your specific population will be interested in, so it's important that you know your own patron base and what's popular with them.

I will say there's plenty of further reading resources provided within this book, though. So, for all that it's kind of flawed as a resource guide, there's tons of cited papers and books that will help fill in the gaps and satisfy additional questions you might have when reading this.