Vintage 1993 Star Trek : Power Klingon - Simon & Schuster Audio Cassette Featuring Michael Dorn AKA Worf - Shop Stock Room Find. Released by Simon & Schuster Audio in 1993 as part of their series of Star Trek Audio Books on cassettes. This fantastic Power Klingon – an advanced audio course in Klingon for those who have mastered Conversational Klingon. Here you'll go beyond simple words and phrases and gain a truer, deeper understanding of the language and culture of Klingon. With the help of two acknowledged experts in the field, you'll learn how to communicate with one of the most aggressive cultures in the universe on its own terms. You'll learn to think like a warrior, making the language part of yourself, respecting its power and wary of its subtleties. Power Klingon will help you discover the warrior within. Unsold Shop Stock Room Find. Discovered in the store room of a closing down shop with a whole host of other Star Trek items from a similar era. Mint Condition but unsealed. All orders received before 4.00pm Monday to Fridays are shipped the same day