The following challenge is designed for those who are just starting out in calisthenics, but that does not mean that the challenge will be easy. The main objective of the next 21 days is to gain dexterity with body weight and consequently you will obtain a noticeable change in strength and, accompanied by a good diet, also a physical change. Although the first days may be simple, little by little we will increase the level until we perform exercises of greater difficulty that will help you throughout your training. If you're ready, LET'S GET STARTED!