Hello! We are former homeschool parents who spent 18+ years purchasing used homeschool curriculum for our family. We understand the importance of knowing what you are purchasing — and actually receiving a book or resource in the expected condition. So, we inspect books page by page, test media, and check over resources, doing our best to represent each item as transparently as possible. Your purchase includes: Singapore Math — Primary Mathematics 4B Home Instructor Guide VERY GOOD! Entire book is Like New Except — 1 page has small hole (1/8”) from erasure. Blank page facing inside back cover contains writing.