The book recounts the singer's childhood days and her upbringing, especially as a daughter to the renowned country singer, Billy Ray Cyrus, reports the Sun.
It shall further "reveal how her solid relationship with her family, especially her mother Letica, helps her navigate the spotlight."
Miley said: "I'm not sure when it's going to come out.
"It" finished but you've got a long process of editing and all that kind of stuff, so it takes a while."
Miley Ray Cyrus is an American actress and singer-songwriter. Cyrus is known for starring as Miley Stewart/"Hannah Montana" in the television series Hannah Montana on the Disney Channel.