Pyramids for Gymnastics Displays by Staff Sgt Alfred Moss is back as an ebook. Bronze Era training involved various disciplines including dumbbell and barbell training, gymnastics, hand balancing, and odd lifting. Pyramid training which is part of the gymnastics discipline has many benefits that include strength development, balance, it teaches your body to perform when uncomfortable, it tests your lactic acid threshold and increases aerobic and anaerobic capacity.
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 Pyramids for Gymnastic Display (1935). 
eBook is 50 pages long.