This is a set of middle school science textbooks from the "Science World Series," covering various themes in nature and science. - Title: Science World 1 - Title: Science World 2 - Publisher: Dainippon Tosho - Barcode: 978-4-478-04006-3 - Barcode: 978-4-478-04007-0 This is a set of two books. The section with the name written on it will be blacked out with a black pen before shipping. Please understand that these are used items. Thank you for looking.