This powerpoint is an introduction to the M9, and it also has a basic self defense tips on shooting a pistol.
Obviously, shooting a pistol is different than shooting a rifle. So, if you are going to shoot pistols or get your concealed carry license you need to learn how to shoot properly. This Powerpoint is a good intro to pistol and general marksmanship. For more info go here for a great video on the fundamentals of pistol marksmanship. The US Army pistol manual was the basis for this Powerpoint.