Notes left by a farmer who lived for 33 years with the muscle-wasting disease known as ALS have been compiled into a book, giving voice to the personal experience of someone living with the affliction.

Shigeru Matsumoto, a former head of the Japan Amyotrophic Lateral Sclerosis Association, wrote his journal using a computer-aided writing system that transcribes characters by sensing electronic signals from slight movements of the jaw.

The notes, printed on more than 10,000 sheets of paper, were found in a box at his home in Ogata, Akita Prefecture, after he died in 2015 at age 83.