I agree, Duane. Humanities help you write better in your own language -- My impression of the engineer/programmer authors I've worked with is they are often very well read and have wide-ranging interests.
What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.