I used these language art programs with two of my homeschooled children. They enjoyed the different approach to learning language arts. The tan book covers 4th-6th grade skills, and the grey book covers 7th-9th grade skills. Both books use an integrated language approach, teaching spelling, grammar, vocabulary,writing mechanics, penmanship and thinking skills. We especially enjoyed reading the suggested novels which the lessons were based on. It was great fun searching for the classic novels in used book shops. We were able to find them all. If your child is tired of the traditional approach to language arts, these books may trigger more of an interest in reading and language skill learning. The tan book is in excellent condition. The grey book is also in very good condition except for a very small bit of fraying on the ringed binding. I am asking $10.00 for each language book.