Do ghosts exist? / Pikori the Traffic Light Picture Book 2-Book Set Slight wrinkles and signs of use. The paper cover of "Do ghosts exist?" has some folds and wrinkles. Please understand that these are used items. A picture book with cute illustrations by Ella Bailey. - Title: Do ghosts exist? - Author: Ella Bailey - Illustrator: Jun Kimura - Title: Pikori the Traffic Light - Author: Masahiko Sato - Illustrator: Kazuhiro Yamamoto - ISBN: 978-4-8340-7977-4 Thank you for viewing.