THIS BOOK DESCRIBE THE THEORY AND PRACTICE OF CORPORATE FINANCE. WE HARDLY NEED TO EXPLAIN WHY FINANCIAL MANAGER SHOULD MASTER THE PRACTICAL ASPECT OF THEIR JOB, BUT A WORD ON THE ROLE OF THEORY MAY BE HELPFUL. MANAGERS LEARN FROM EXPERIENCE HOW TO COPE WITH ROUTINE PROBLEMS . BUT THE BEST MANAGERS ARE ALSO ABLE TO RESPOND RATIONALLY TO CHANGE. TO DO THIS YOU NEED MORE THAN TIM-HONORED RULES OF THUMB; YOU MUST UNDERSTAND WHY COMPANIES AND FINANCIAL, MANAGERS BEHAVE THE WAY THEY DO. IN