Signs and Seasons is a classical approach to astronomy from a Christian perspective for grades 9-12. The author quotes ancient sources throughout the course, tying in centuries of knowledge and understanding. This is a beautiful, hard-cover book, full of pictures and diagrams. The first part reads like a science text/devotional, designed to read together as a family (or a student can read it alone). The back of the book contains field activities for each chapter so that your student (or your entire family) can go outside, chart the skies and journal their way through a classical study of the skies. “The heavens declare the glory of God; and the firmament shows forth His handiwork...” (Psalm 19:1). With Signs and Seasons, your student will be continuously pointed back to the author of the skies. What I like: It’s so thorough, with everything included. And now, with the new Field Journal and test book, this is truly a complete, homeschool friendly course. The field activities are great. What I don’t like: I must admit I’m not really into classical education, so I found all the quotes by ancient greek philosophers a bit tedious (as did my kids). However, I glossed over those a bit and went right into the lessons, and we learned so much! Retails for $39.99.