Here are the Februarybestsellers at Books for Business, the Toronto specialty bookstore. The list reflects only single-copy purchases and not bulk sales to companies. 1. The Essays of Warren Buffett: Lessons for Corporate America, by Lawrence Cunningham (Lawrence Cunningham, $27.50). 2. The Cooper Files: A Practical Guide to Your Financial Future, by Sherry Cooper (Key Porter, $29.95). 3. Shared Services: Mining for Corporate Gold, by Barbara Quinn, Robert Cooke and Andrew Kris (Prentice Hall, $52.95). 4. Who Moved My Cheese? An Amazing Way to Deal with Change in Your Work and in Your Life, by Spencer Johnson (G.P. Putnam's Sons, $27.99). 5. Six Sigma: The Breakthrough Management Strategy Revolutionizing the World's Top Corporations, by Mikel Harry and Richard Schroeder (Doubleday, $42). 6. Customers.com: How to Create a Profitable Business Strategy for the Internet and Beyond, by Patricia Seybold and Ronni Marshak (Random House, $44.95). 7. The Millionaire Mind, by Thomas J. Stanley (Andrews McMeel, $39.95). 8. Preparing Your Income Tax Returns (2000 edition for 1999 returns), by Arthur Andersen (CCH Canadian, $45.50). 9. Consulting Demons: Inside the Unscrupulous World of Global Corporate Consulting, by Lewis Pinault (HarperCollins, $39.50). 10. High Stakes, No Prisoners: A Winner's Tale of Greed and Glory in the Internet Wars, by Charles Ferguson (Random House, $41.50).