At 4.5 by 7 inches in size and only 89 pages long, the aptly named JavaScript Pocket Reference will really almost fit in your pocket. Use this guide as a companion to turn to when you"re in doubt about that function syntax or you"re drawing a blank on the JavaScript object model. The book concisely packs together the syntax of the scripting language, including summaries of expression and statement style. The real meat of the tiny title is an alphabetical listing of JavaScript objects, along with their associated methods, properties, and events. One nice feature of this section is the attention to the varying support between Microsoft and Netscape browser versions. However, this listing is useful only if you know what object you want to work with. Missing from the reference is a solutions-based reference to let you refresh your memory about how to do a particular task, such as validate a form field or roll over a graphic when the user moves the mouse. One drawback is the book"s illustration of the object model--done only in a small diagram. This is a bit of a shame since this is one of the key topics most developers need help with. If you"re rather familiar with JavaScript, this pocket reference will be helpful. New coders, however, will likely find it insufficient. --Stephen W. Plain