Introduction to the use of Spanish smart energy storage cabinets

What exactly is the difference between "introduction to" and "introduction of"? For example: should it be "Introduction to the problem" or "Introduction of the problem"?

Introduction“A good introduction will “sell” the study to editors, reviewers, readers, and sometimes even the media.” [1] Introduction …

the introduction toof sb. the introduction of Newtonthe introduction to Newton? … 5 …