Telecommunication networks are continually evolving and are deeply impacted by new technologies such as Software Defined Networking (SDN), Software Defined Wireless Networking (SDWN) and Network Functions Virtualization (NFV) paradigms. Research and solutions that explore new concepts, however, need to be tested in controlled environments, provide reliable results, and preferably have portability to physical network infrastructures. Thus, seeking to fill an important gap about experimenting with projects and research on wireless networks, the Mininet-WiFi emulator was developed. Also capable of emulating the wired medium, Mininet-WiFi can be used as a tool in the process of teaching computer networks for various levels of education and addressing multiple case studies including mobility, mesh and ad hoc networks, load balancing, security, quality. of Service (QoS), MultiPath TCP (MP-TCP), vehicular networks, IoT, P4, among others. This book takes an approach to the world of wireless networking with an emphasis on experimentation and case studies, which are separated at different levels of complexity, but always following a didactic step-by-step approach, with access to source code for reproducing activities. proposed practices and supplemented with additional readings and demonstrative videos.