Liz Weston's Book on Credit Scores is Worth Reading
Liz Weston, who is MSNBC's excellent consumer reporter, is the author of an excellent book on credit scores, Your Credit Score, Your Money & What's at Stake: How to Improve the 3-Digit Number that Shapes Your Financial Future (available on Amazon).
In the first chapter she explains that even a little ignorance about how to make your score higher can cost hundreds of thousands of dollars in higher interest payments over the course of a lifetime.
She dispels myths such as the idea that closing accounts will help raise your score. According to Weston, closing accounts will never raise your score and can frequently lower it.
The chapter headings indicate the topics she covers:
1 - Why Your Credit Score Matters
2 - How Credit Scoring Works
3 - VantageScore - A Revolution or Just More of the Same?
4 - Improving Your Score - The Right Way
5 - Credit-Scoring Myths
6 - Coping with a Credit Crisis
7 - Rebuilding Your Score After a Credit Disaster
8 - Identify Theft and Your Credit
9 - Emergency! Fixing Your Credit Score Fast
10 - Insurance and Your Credit Score
11 - Keeping Your Score Healthy.
An updated edition is available in a few weeks according to Amazon.

How do consumers get the best deal on credit? Most people know that furnishers--the lenders that supply credit--look at consumers' FICO scores. The higher the score, the better deal the consumer will get. That means a lower mortgage rate or a more favorable interest rate on a new car.