This collection of Robert Laughlin's Instant Piano Home Study Course is a must-have for any music enthusiast. The set includes cassettes, staple bound and spiral bound books, covering a range of eras and genres, making it a versatile tool for learning. Additionally, the collection features other courses that will further enhance your piano skills. The language used in this collection is English. The product is in excellent used condition and is a great addition to any collection. Don't miss out on the opportunity to learn or take your piano skills to the next level with this comprehensive set.