This 7th edition of OHCM, while retaining the much loved concise and essence of the previous editions has been greatly revised, improved and updated. It contains a new chapter on radiology, new information on how to handle common calls and a wider coverage of medications and doses, clinical skills and surgery. The best feature has to be the integrated colour illustrations with pictures and cartoons; and tons of radiographs, CT images, MR1 images etc. The layout is very reader friendly. This is an invaluable study aid for plab and all medical exams. It also has a PDA version, and web links from the book for instant access to evidence based clinical information. This is a must have and if you have a previous edition it is worth the upgrade.