This document provides instructions for several gym exercises, including parallel bar dips, peck deck fly's, bench press, lat pull downs, chin ups, reverse chin ups, back lat pull downs, triceps dips, preacher curls, barbell curls, reverse curls, concentration curls, sit ups, incline sit ups, leg raises, upright rows, bent-over-later-al-raise BIRD, and lateral raises. The implementations provide step-by-step instructions for performing each exercise properly with the goal of building muscle mass and strength.