The product is a revised edition of “German : How to Speak and Write It” by Joseph Rosenberg, published by Dover Publications, Incorporated in 1967. This language course is part of the Dover Dual Language German Ser. It is a trade paperback book in English, measuring 8.5 x 5.5 x 0.8 inches with 400 pages. The author provides insight into German language study, making it a valuable resource for those looking to learn and improve their German speaking and writing skills.