From the reviews:

"This short book . provides an excellent and concise summary of the basic technology in the computer networking industry today. . The goal of each chapter is to give the reader an idea of the crucial concepts, the standards, and the key terminology in use. This brief is ideal for technical managers and knowledgeable readers who need to come up to speed quickly in this subject area. Summing Up: Highly recommended. Lower-division undergraduates, two-year technical program students, professionals/practitioners, and general readers." (J. Y. Cheung, Choice, Vol. 49 (10), June, 2012)

"Robertazzi wrote this book for people reasonably familiar with technology, though perhaps not necessarily in the ICT area. . The book is only 84 pages in length. . What is included is covered reasonably . . this book amounts to a good, concise brief for quickly coming to grips with the basics of computer networking . . There is a good table of contents and list of references." (David B. Henderson, ACM Computing Reviews, August, 2012)