Clinical Emergency Medicine Casebook lives up to its title as a clinically relevant reference. Categorized by major organ systems one gets the opportunity to review case presentations in a standardized format complete with copious illustrations. Be the super sleuth. Read the history, know the physical exam, have key evaluation parameters and take a stab at the diagnosis. Answers are thorough including key teaching points and references. Compare your work ups to those of the experts. Are you ordering too many or too few tests for a given complaint? Think about the last patient you saw with this presentation and see if you would have missed this diagnosis. Learn from the detailed and informative case reviews. It is a somewhat novel but very helpful approach to work towards the diagnosis, as we do everyday in real practice, rather than look up a condition and work backwards. With traditional methods of presentation we may be able to recite a litany of facts regarding any specific diagnosis but would we recognize it in the Emergency Department? Well written, thought provoking and educational. Well received by attendings and residents. Nice work Levis and Garmel!