Book excerpt: - Clinical Pearls highlight the main signs which students and trainees should look out for to help them identify conditions with which the patients present. - A Student Consult eBook is available with the purchase of a print book, and provides access to a total of 200 multiple choice questions covering the 7 body systems, to test students and trainees' knowledge of the content. - The eBook contains links to audio and video examples of particular signs which have to be heard or observed over a period of time in order to be identified correctly, e.g. Agonal respiration in Chapter 2 Respiratory Signs. - New images are added to depict clinical signs where no images were present in the previous edition.