The "CCNA Certification All-In-One for Dummies" by Silviu Angelescu is a comprehensive textbook designed for individuals looking to obtain their CCNA certification in the field of networking. Published by Wiley & Sons, this trade paperback book covers a range of subjects related to computers, networking, and data processing. With a total of 992 pages, this textbook provides in-depth information and guidance for individuals looking to enhance their skills and knowledge in the field of networking. The CD-ROM included with the book offers additional resources for learners to aid in their studies.