I am fairly excited by several new books which arrived at my door last week. The first is Security Data Visualization by Greg Conti. I was pleased to see a book on visualization, but also a book in visualization in color! I expect to learn quite a bit from this book and hope to apply some of the lessons to my own work. The next book is End-to-End Network Security: Defense-in-Depth by Omar Santos. This book seems like a Cisco-centric approach to defending a network, but I decided to take a look when I noticed sections on forensics, visibility, and telemetry. The author includes several diagrams which show how to get information from a variety of devices in a manner similar to NSM. I hope to be able to operationalize this information as well. The last new book is LAN Switch Security: What Hackers Know About Your Switches by Eric Vyncke and Christopher Paggen. This book looks really interesting. It is probably going to be my favorite of these three. I don't spend much time in my classes talking about layer 2 defenses, so it is cool to see a modern book just about that topic. I believe most enterprises do little with layer 2 security, so perhaps this book can improve that situation.