Nice book with a lot of colour photographs. Although it covers all the Islamic regions, it is not in depth and gives merely a glimpse into each region's tiles. Many of the photographs are small and not detailed. A better choice of book would be Miller's Tiles of Damascus.
This is an excellent book, no matter how many times you go through it you are completely captivated by the pictures of the stunning mosques, mausoleums, palaces, etc. From the exterior tiles, renovations, patterns, to the intricate interior, domes, borders, etc. It actually makes you want to visit the whole muslim world country by country. From Esfahan (my personal fave), to Cairo, From Samarkand, to Cordova - (countries included: Morrocco, Algeria, Tunisia, Syria, Turkey, Spain, Egypt, Iran, Iraq, Uzbekistan and Central Asia, Afghanistan, Pakistan, India) Obviously it can't have every muslim country and every stunning monument but it has the main ones and is well priced.