At 33 pages this is more of a booklet than a book, and is much more about brickmaking rather than the completed bricks.
It has plenty of black and white photographs showing brick manufacturing equipment, but they are not of the greatest quality and I didn't find them particularly helpful. Most of them were photographs of machines used to make the bricks and in most cases they poor quality means that it is difficult to work out what is going on.
Given the space limitations, there is not much opportunity for the author to look at the development of brickmaking, but the book does include some details of Roman brickmaking, and does compare pre-machine and later types of manufacturing process.
For anyone interested in specific brickworks or brick marks, there's nothing here that will help you. You will need another source of information for that.
The descriptions are clear and intelligible and it is a pleasant read. It's a nice enough book, particularly for the size and price, but don't expect to come away with any in-depth knowledge, particularly about the bricks themselves post-manufacture - this is a very top-level introduction focusing principally on brickmaking. I would have given it four stars if the photographs, which take up a lot of page space in the book, had been clearer.
The table of contents is as follows:
Classification of bricks
The geology of brick clays
Clay winning and preparation
Calcium silicate bricks
The brick itself
Places to visit.