Wireshark Essentials is useful even if you’re a beginner with wireshark or want in depth knowledge with the network analyzer. The step by step instructions approach is very effective and understandable. This book also serves as reference using wireshark as it excels in detailed and specific tutorial preventing confusion for the users. All important topics are covered including troubleshooting problems, analyzing protocols, configuring filters/setups and other features. This is a must if you want to be successful with your networking career as wireshark is very useful in troubleshooting and understanding the protocols. I would recommend this book to anyone working with networks beginners and experts alike.