Wel, if you're any junior doctor, med student or just stareted working in a ER, this is an absolutely amazing tool. Indispensable actually. It covers the most frequent pathologies and cases that come up in the ER and most of them have a clear picture of what you need to do. Always divided (each disease) by "Assessment, Management, and treatment". Cardiac, neurological, dermatological, nephorology, etc so if you are going start tomorrow, be sure to bring this book with you. Very good and very straight forward.