If there's one lesson business owners can take from the recent credit crunch, it's that you can't know too much about how to generate cash. Corporate Liquidity: A Guide to Managing Working Capital, by Kenneth L. Parkinson and Jarl G. Kallberg (Business One Irwin, Homewood, Ill., 1993, $55), is filled with valuable information about everything from managing payables to finding the most suitable banks.

Some of the material (the chapter on global treasury management, for instance) is clearly beyond the scope of most small companies. But the authors have made a real effort to make the nearly 400-page book easy to use. In addition to being clearly written, each chapter is broken up with tables, charts, and checklists that readers can study and follow.

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