Tens of architectural styles are described clearly and in a way easy to follow and remember. One minor problem is the illustrations and the coordination between them and the text. Why do we need architectural drawings instead of photographs? Because with your own drawings, you can bring readers' focus to the key points in the architecture and keep the rest in a faded background, you can easily annotate in your drawings, and more importantly, you can present the cross-section or the inner view along with the outer look of the building at the same time. But if none of these are done, hand drawings should be replaced with photographs, which offer the advantage of greater details and trustworthy authenticity. All illustrations in the first four chapters of this book are of this kind, some of which are simply a quick sketch with very cursory lines. Hand drawings would be fine, as long as the authors, not the illustrator or the text author alone, but they together, provide ample legends, arrows, and explanatory words inside the drawings, occasionally with smaller inlet drawings, and these texts are closely coordinated with the main text. In fact, this would be the ideal solution, better than throwing a bunch of photographs un-annotated, which in turn are better than un-annotated quick sketches as this book is doing (except in Chapter 5).