The problem I have with this book is that to a very large extent, its title belies its contents. It is not thematic in the same way that Walford's super Great Themes in Art is. The target period is really the Baroque, which starts with the High Renaissance and what some call Mannerism. There is little about principle in operation before this period, or afterwards. Very interesting if you like the period, but personally I am more interested in substance than flourishes. For those perhaps with a broader perspective than mine, very insightful regarding the period.
A little dated in its content, yet many aspects of it are very relevant to current practice. The condition of the book I have to say was shabbier than I expected even though it was described as very good