The late Richard Pearce Hunnicutt is famous for his series of books on the development of the United States' armored vehicles. Probably his most famous is Firepower: A History of the Heavy American Tank, a single-run book from 1988. Such is the quality of this book that nearly 30 years later, it's still considered the last word on the subject and commands very high prices in the secondhand market.

What's in it? Well, everything you didn't even know you wanted to know about America's heavy tanks to ask about in the first place. Here's just a peek of the sort of thing that's on the pages: