A book explaining the strongest method of wish fulfillment, which 90% of Japanese people don't know. - Title: Kakeba Kanau (If You Write It, It Will Come True) - Author: Hikaru Haga - Publisher: SB Creative - Price: 1500 yen - ISBN: 978-4-8156-0258-1 There is a signature. (Image 4) The book has a cover. There are some yellowed parts, but the inside is in clean condition. Thank you for looking.