Ok I've finally decided to invest in a textbook. Most of my seniors suggested that I buy "The Textbook of Anaesthesia by Aitkenheads" since its good for beginners. The editions that most of the residents have is the 4th one published in 1995. The difference between 4th (1995) and 5th (2007) edition is that the 4th one has specific chapters on anatomy, physiology and pharma and physics while the 5th one has been cut short to make it more "portable" as mentioned in the preface of 5th edition. Now the question is which one should I buy? The 4th one which also has basic science or the 5th one which has less emphasis on basic science. What do you people suggest?