"Network Security Essentials: Applications and Standards" is a textbook authored by William Stallings, focusing on the subject areas of computer security and networking. Published by Pearson Education in 2016, this 464-page trade paperback covers essential topics related to security, both in a general sense and in the context of networking. This textbook serves as a valuable resource for students and professionals interested in understanding and implementing network security measures, providing a comprehensive overview of the applications and standards in this field.