I received this book as part of LibraryThing's early review project. returnreturnWe are a home school family so having books like this available is always a big plus to us. That being said my oldest is currently in 2nd grade so it will be a time before we use this reference regularly. returnreturnIt says its visual guide to acing math in grade 4-9 but there are some topics in here that I never touched until 10th grade geometry, so your miles may vary. returnreturnFrom the description I had hoped we would be able to use this as a curricular from middles school math, but alas its more of a reference book than a curriculum. But for what it is, it's well put together, though quite heavy.