Harrison's Principles of Internal Medicine

I've been in this field as a Nurse Practitioner for over 16 yrs. The text is certainly the "Gold Standard" for General Medicine. Excellent in Emergency Medicine, Primary Care and Family Practice. A must have for your medical library.

I think harrison's should be the reference book for all the undergraduate students in the world. it is concise, yet awfully complete. it's my bible in my study

This book is the Bible of Internal Medicine. Anyone considering a career in medicine should have this book in their library. Comprehensive and well written, it is the gold standard of medical textbooks.

Especially for the medical students it's important to carry a reliable handbook in ER or such places.The size and weight of this book make this quite easy.

This book is a medical tradition, and it is as important to doctors as their stethoscope.
It is very complete, there is no doubt about it. Every subject of medicine is covered, and for a reference book is a must-have. It is also written in an easy-to-read way, but some chapters are more difficult to understand than others, and like a good meal, in excess it can get heavy and occasionally become a brick, so slow-reading is advised. Also worth to mention are the atlases, that give a lot of pictographic information.
I would recommend it only as a reference book, because for the USMLE, or as a course textbook, it is impossible to read it all, especially if time is scarce.