Simple, lucid and funny, this book deals with one of the most important, but uninteresting topics in medicine with a touch of humor. It is a handbook with step by step instruction for the clinician. Complicated mathematical terms are avoided to all possible extents. If you are a physician, medical student or a postgraduate and happen to be weak in maths, scared of statistical jargon, this book is for you. Every chapter ends with a concise ChapSum which gives the most relevant info in one paragraph.