Nowadays, power tools are not the same as the ones that were carefully placed on the pegboard by your grandfathers workbench- they are actually quite far from it. Modern technology has made amazing advances in the simplest of features, including automatic shut-off, enhanced guarding and more resilient materials just to name a few. But one aspect has come to be worth its weight in gold within the power tool industry, and that's the owners manual.
The latest manuals not only have better graphics showing its users what each part of the device should look like (and what to do when it doesn't), many individual manufacturers will have explicit directions and instructions for the safety and maintenance of each individual power tool. Needless to say, no instructions are completely fool proof, especially if the content of such manuals isn't completely understood by the user. This is why many manufacturers have implemented training seminars and classes for both companies and individuals on the proper procedures for optimum performance and safety. Local home improvement stores often hold such classes and seminars on a regular basis.