Horizontal Bar Exercises ebook by Staff Sergeant Alfred Moss. This ebook describes
many exercises that can be performed using Horizontal Bars, which includes dips, swings, balances, planks and other more advanced movements which strengthen and increase mobility in your upper body and lead to a gymnastic style of muscular development.
The benefits of parallel exercises include:
Improved upper body and core strength: Targeting the arms, shoulders, chest, back, and core.
Enhanced grip, balance, flexibility and coordination: Essential for gymnastics routines, physical therapy, and general fitness.
 
Staff Sgt Alfred Moss (1868-1952) was a prominent bodybuilder, strongman and gymnast, who was a well known figure in the British Army during the late 19th century. He primarily served in the 8th King's Royal Irish Hussars regiment, and went on to win the British Army Gymnastics Competition in 1900. Following his time in the military, Moss went on to work as a physical instructor, a career which he continued into his late 60s. Notably, he was a highly regarded competitor at Bernarr Macfadden’s 1903 Perfectly Developed Man Competition, and made it through the contest’s opening rounds. However, he was later disqualified for having tattoos. Moss later published several books on physical culture, including this ebook. 
eBook is 68 pages long.