The ATI The Comprehensive NCLEX-RN Review 20th Edition is a study guide specifically designed for nursing and education students preparing for the NCLEX-RN exam. Published by ATI, this illustrated paperback book covers essential subjects in nursing and provides detailed information on exam preparation. With 322 pages of content, this advanced level study guide offers a comprehensive review of the nursing exam, making it an invaluable resource for students looking to succeed in their studies.