This is a great starter reference on hops. It has descriptions, uses, tips about buying hops, what to look for, and even tips on growing your own hops.

My only problem with this reference is that it is now a bit outdated, as many new types of hops have been introduced since this book was released. These are, of course, not covered. I am hoping the author will release an updated version.

While this book is educational and should be read from cover to cover, most brewers will probably use it more often as a reference work. It has comprehensive descriptions and substitutions for most hop varieties. We reach for it every time we brew.