An article (by me) which provides a gentle yet thorough discussion on continuations, in addition to exploring modern extensions (as provided by SRFI 226), all while maintaining a positive opinion on continuations, in contrast to any backlash or aversion it may have suffered from before.

If you want an article that dives deep into what continuations are, how they work, plus some extensions, and gives you the mental model with which you can understand them, this article is for you.