This is a complete, brand new set for one year of middle or high school science. I purchased it, then decided on a different subject matter after my return period ended. I maxed out on the number of pictures I could post, so let me know if you want to see a different view. You can check out a sample of the curriculum at: masterbooks.com/general-science-1-survey-of-earth-sky-curriculum-pack Currently, a new, complete set is sold for $82.35 on the MasterBooks website.