ATV (All-Terrain Vehicle) racing is a sport that attracts new riders and fans every year.  Machines are built tough to withstand the stresses of various courses.  Popular MX (motocross) races are short – lasting from 15 minutes to a certain number of laps.  XC (cross country) races can last more than two hours.  Riders must have training and wear special gear.  Because of the variety of courses, riders must be in top physical condition to guide their vehicles successfully.  Professional and amateur events are held all over the U.S.  Fast Facts are found on almost every page.  Highlighted text is defines on the page as well as in the glossary.  An index, suggested books for further reading at a similar reading level, and an internet site are also in the back.  This is a good, but short, introduction to ATV racing.