Photographer Hitomi Toyama has recently published a book of photos she has taken over the past two decades revealing different aspects of life inside prisons throughout Japan.
The book, titled "Nippon no Keimusho 30" ("30 Japanese Prisons"), includes a picture of a prisoner holding a baby she just gave birth to inside a prison and another of synchronized swimming performed by inmates at a juvenile correction institution.
"I think prisons are a microcosm of Japanese society and we can see Japan from the inside," Toyama said. "I hope this will give people the opportunity to think about ways to reduce crime."