Programming logic workbook using Minecraft. I bought this to teach my child programming, but they stopped playing Minecraft, so I'm selling it. There are no markings inside, but there is a crease on the cover. I do not accept returns or complaints, so please ask any questions you may have beforehand. Please purchase with the understanding that this is a used item. - Title: Programming Logic Drill: Learn by Playing Minecraft - ISBN: 978-4-8018-1602-2 - Target age: Elementary school students and up - Contents: Workbook using redstone circuits - Game used: Minecraft - Features: Develop logical thinking by actually solving problems Thank you for looking.