I just finished showing this text to a number of my architecture students, and did a search for the availability. Horrors !!! It is out of print ! How dare they !
This is probably one of the nicest "pocket" compilations dealing with the history of architecture that I have used both academically and professionally. The organization of the text is in accordance with Architectural Periods, each of which is broken down nicely. Clear, concise descriptions are provided for each period, as well as for those buildings, styles, architects, and details that are featured for each.
There are numerous line drawings throughout the text, which are of such a fine and delicate nature, that I would suggest that this text is on par with Bannister Fletcher's History of Architecture, if for no other reason, then for the quality of the printing.
If you find a copy, buy it !

If you are looking for a great photographical history of architecture in the modern world (15-20th centuries), this book is for you. More a page flipper than a page turner, yet absolutely worthwile if you choose to read the words as well.