
For someone just getting into reading the works of Stephen King, I can imagine that the canon looks practically infinite. The man is not just one of the most beloved authors of the last half-century, but also one of the most prolific, and he has had at least one book published every year going back to the mid-1970s. It seems like an endless font, and his continuing work maintains that perception (his next book is coming out in the fall, and he has already lined up at least one title for release in 2027).
I can tell you from personal experience, however, that a terminus does exist, and having personally read every King novel except for one, I find myself feeling torn about how to proceed.