The product is a new Spanish grammar book by Christopher Kendris, published by McGraw-Hill in 2011. It is a paperback book with 232 pages, designed for intermediate (B1) and elementary (A2) level language learners. The book focuses on Spanish grammar, providing valuable insights and explanations in English to help learners master the language. With a clear and comprehensive approach, this grammar book is a valuable resource for anyone looking to improve their Spanish language skills.