Koehler, Jack H. 2000. Upscale Nine-Ball. Laguna Hills, CA: Sportology Publications. Popular book on 9 ball, mint condition. UPSCALE NINE-BALL is intended for intermediate to advanced pool players. Entire chapters are devoted to shots and situations associated specifically with the game of NINE-BALL. Does a particular shooting accomplishment, on one table, have universal meaning? Not really; for example, it is much easier to run nine balls on a table with large pockets than to run nine balls on a table that has small pockets. Until now the relitive difficulty of pocketing balls had to be described subjectively. This book describes an objective way of evaluating relative pocket difficulty (Chapter 2). Have you ever wondered how your NINE-BALL skills compare to those of your friends across the country? Are you playing better today than you did five years ago? Do you play better with an 18-ounce stick than with a 20-ounce stick? Without an objective way of evaluating your game skills, you can only guess at the snswers to these questions. By using the KOEHLER SKILL RATING SYSTEM (Chapter 18) you can answer these questions objectively. This book describes, in detail, all the various handicapping systems. The value of each type of handicap varies with the skill of the players. You can now determine exactly how much each handicap is worth to you as an individual. The "skip handicap system" (Chapter 19) is a new system that can be fine-tuned to an extent that has never befor been possible. About the Author: Jack H. Koehler is the author of more than twenty published scientific reports. He has also authored two other books on the subject of pool. They are; "THE SCIENCE OF POCKET BILLIARDS" and "UPSCALE ONE-POCKET." The pool related books are the result of more than 40 years of observation, participation, and experimentation.