As a 4th year medical student at KCL, I found this book to be excellent. Its best features are:
-Its style, which is clear and suceeds in explaining dermatology in an easy to understand way.
-The pictures: good quality and size.
-Its scope. It is more than comprehensive for any medical school curriculum. I'm interested in dermatology so read the whole thing. For students who do not wish to read it cover to cover, there are chapter summary boxes that could help to guide them with selective reading.
-The 5th edition covers, among other topics, important developments in immunology and biological therapies.