In this chapter we have explored the nature of engineering through the profiles of several practicing engineers, through engineering job advertisements, and through some of the great accomplishments of engineers. We have explored some of the very broad sets of engineering careers and tasks. We have also discussed the most common engineering specializations of today. These activities establish a foundation for understanding the impact of engineering on our society. We have also examined several trends to help us understand the future of engineering. And finally, we have explored the educational requirements and licensure of engineering.