This lecture frames this transition for the course. We begin by reviewing what we have covered so far (definitions, history, technologies and framework) and set the stage for the remainder of the course. In particular, we will introduce medical technology, aerospace & defense, and automotive as key industries accounting for significant applications of AM. We also review six attributes that help explain why these industries tend to dominate the space. This edition of the video series does not include the quiz, assessment, or assignment portion as mentioned in the lesson.