Anyone who is a fan of the banjo should own this book ... if their budget will allow it. (It often goes for $300-$400, but I managed to find it for half that price due to dumb luck and a lot of patience.) Page after page of "eye candy" for fans of stringed instruments and banjo-themed collecible trinkets.
I know I cannot possibly afford Tsumura's "1001 Banjos" masterwork, so this book will be among my prized "scholarly" type books.
The emphasis is on four-stringed banjos, not the five-sringer that is common in country-western and bluegrass music. That's not a criticism of the book but is simply stating where its focus is.
It is not a really lengthy book, but it is pretty well "crammed full" of lovely pictures and (some) text. I would have liked bigger pics and more text -- but that would have made it a costlier book!
If you can afford it, buy it, period. Other great banjo books (with more text but fewer full-color photos) include "Ringing The Banjer" and "The Birth of the Banjo" and "America's Instrument: The Banjo in the Nineteenth Century"
Full of color plates of banjos that this man collected over a lifetime, it is like looking at the history of worthy 4 string (tenor and plectrum) banjos with a few 5 string banjos thrown in. While this book is 99% 4 string banjos, it is a "bible" for those of us who collect banjos. The beauty and history of each instrument is very well shown in the full color plates of both front and back of each banjo.
It is a shame this collection was sold off a few years ago, but if you can afford this book it is well worth having. It was produced in limited numbers and generally a copy in good to excellent condition will go for $$$. If it has the box it originally came in expect to pay close to $$$$ for a copy of it.