This chapter presents an overview of multimedia information transmission over Wireless Sensor Networks (WSNs). These WSNs have evolved since the 1980s and their evolution can be divided into three generations. Wireless Multimedia Sensor Networks (WMSNs) have become viable in recent years with the availability of inexpensive video cameras, increase in procession power and memory capacity of nodes, and better power sources and their management. Multimedia information requires higher bandwidth and lower delay and delay jitter to provide the required Quality of Service (QoS) for multimedia transmission. Further research is being conducted, and can be taken even further, in the areas of advanced algorithms for content capture, compression and communication of multimedia information over WSNs.