This book is intended to provide practice quiz questions based on the thirty-three areas of study defined for the Wireshark Certified Network Analyst™ Exam. This Official Exam Prep Guide offers a companion to Wireshark Network Analysis: The Official Wireshark Certified Network Analyst Study Guide (Second Edition).
Laura Chappell is the Founder of Protocol Analysis Institute, Inc., Wireshark University, and Chappell University, and the creator of the WCNA Certification.
While I question the value of WCNA as a certification, this book does a very good job of explaining how to work with the tool.
One critique is that the author's experience seems to be a bit narrow. Walkthroughs center around applications you'd typically find in enterprise networks, where entire tools of Wireshark which deal with Sigtran applications, Diameter, etc., are ignored.
It's somewhat dated now that Wireshark 2.x and 3.x have been out for some time, but the majority of the book still applies.