The idea of this book is great - a catalogue of top twentieth century photographers, with a biography and some of their finest work from the Museum Ludwig Cologne's collection. The execution of the book, however, falls short of the mark. I realise that the book is a cut-down version of a much more extensive work, but judging by the reviews to that work the same problem arises: the biography and annotation of the works is, at best, perfunctory, and in general dry and uninteresting. Whether this is the fault of the author or translator, I do not know, but if I was judging this work on the text alone it would struggle to reach two stars. Thankfully, the photographs themselves are strong enough in their own right to lift this book above that level... but not enough that I could heartily recommend it.