We hope that after studying and testing oneself in this textbook that one has learned the information we feel is commonly tested on the USMLE Step 2 board examination. We have included the most high yield pathological conditions and have used the information presented in the text book to prepare appropriate USMLE 2 style questions. We remember the process of going through USMLE 1 to 3, and then continuing with our Specialty board examinations. After much attention and review, we feel that we have come to a better understanding of how to approach these examinations and how best to study the immense amount of material that is expected to be understood. This is the perspective we have used when writing these texts. It is with this in mind that we hope these textbooks can be utilized to effectively do well on USMLE examinations. Good luck on your boards and in the future. Please feel free to contact any of us with any questions or concerns. Thank you.