According to his official blog post on the same day, photos for the book were already shot in Las Vegas, USA.
The official website for 35-year-old popular anime voice actor Mamoru Miyano announced on August 12 that his first photo book is set to be released from Shufu to Seikatsusha at 3,704 yen (about 33.61 US dollars) on October 26, 2018.
To get an entry coupon for the event, you need to pay in advance for the book or buy it after the release at the select Animate stores by November 12.