-To make sure you don’t injure yourself by doing exercises incorrectly;
-To make sure you get the most out of every workout;
-To keep you motivated and interested in your workout and fitness targets;
-To introduce you to exercises you may not have done before and progress the exercises as your fitness improves;
-If you workout in between sessions you have more exercise options;
-To monitor and reassess your progress and goals regularly;
AND to keep you honest!!