In its 16th Edition, this widely acclaimed book has evolved and expanded into the ‘Drug Eruptions and Reactions Manual’ (D.E.R.M.) – an authoritative guide to adverse drug reactions and reaction patterns. With improved adverse-events listing and a new classification system for reaction patterns, Litt’s D.E.R.M. is a valuable resource for anyone dealing with drug prescription. The intuitive look up format and comprehensive coverage make it a helpful diagnostic aid for medical practitioners and an important reference tool for educators, lecturers, pharmacists and students. In retaining its unique focus on drug eruptions, which is much beloved by dermatologists, this edition is also essential for anyone researching, teaching and practicing cutaneous medicine.