Best-selling author Ben Stein brings you all three of his irreverent and humorous How To Ruin books in one anthology; How to Ruin Your Life; This book features sardonic advice on how to ''ruin'' your life, presented with tongue firmly planted in cheek. Topics include ''Convince Yourself You're the Center of the Universe,'' ''Think the Worst of Everyone,'' and ''Make the People Around You Feel Small.'' How to Ruin Your Love Life; The essays in this bitingly humorous book include such masterstrokes as; ''talk about Yourself Exclusively'' and ''Compare Your Love with Lovers You've Dated in the Past.'' This work will allow you to honestly assess how many relationship-killers you (and your lover) are currently engaging in. How to Ruin Your Financial Life; If you do the opposite of what this book tells you, you'll learn how to handle your finances appropriately. Some of the rules include; ''Collect As Many Credit Cards As You Can and Use Them Frequently,'' ''Compete with Your Friends to See Who Can Spend the Most,'' and ''Invest in Penny Stocks.''.