It describes 37 asanas including Dhanurasana, Kukkutasana, Matsyendrasana, Mayurasana, and Sarvangasana, along with mudras (to control the subtle energy in the body) such as Mahamudra and Viparita Karani.The book is written in Marathi, a language widely spoken in the Indian state of Maharashtra, and published in Bombay (now Mumbai) in 1905 by Janārdana Mahādeva Gurjara at Nirṇayasāgara Press.Influenced by photography, which soon followed in a series of yoga manuals by other authors, the images in Yogasopana, engraved by the experienced artisan Purusottam Sadashiv Joshi, accurately represent the gradations of light and shade on Ghamande's body as he executes the asanas.[6] Steven Greenberg of the United States National Library of Medicine describes Yogasopana as "a small book, modestly printed, whose influence belies its humble appearance."[7] In the museum curator Debra Diamond's view, the book "was conceived as a work of art",[6][5] not just as a practically useful guide to the illustrated asanas, and it was "self-consciously modern".