The "Focus on Grammar Student Book Split 5A" by Jay Maurer is a language course aimed at foreign language study, specifically focusing on English as a Second Language. Published by Pearson Education in 2011, this book includes a CD-ROM and is part of a series designed to help students improve their grammar skills. With 256 pages, it offers detailed explanations and exercises to help learners better understand and apply English grammar rules. Jay Maurer's expertise in the subject area makes this book a valuable resource for those looking to enhance their language proficiency.