I tried to make a list of all the books I’d read once. It was over 2000 titles long when I realized there was a problem. There were some authors where I’d read dozens of their books and didn’t recognize a single summary when I looked them up. For other authors, I remembered every single book. What’s the difference between the two? That’s hard to say given I don’t remember one type, but I’ll make a guess.
There are some authors whose books you can read very fast because the story is simple. We follow one character or group pursuing a single goal. All the story complications have to do with that single goal. You can zip through the story quickly and forget it just as quick. Nothing wrong with that. Some authors build successful careers on that writing style. I’m not even suggesting you shouldn’t use that style.
There are other authors whose books you can’t read fast. The people in their stories have their own motivations and don’t cooperate with the central story. In other words, the novels have subplots. These are the 2000 plus books I remembered well. Sub-plots make a story unique and more realistic.
Nobody has a favorite book that has no sub-plots unless it’s a favorite book from childhood. Adult novels that are simple quick reads are too much like other books in their genre. They are forgettable.
As an example, I’d like to talk about the plots of a few favorite books. Recent research has found that knowing the plot of a story doesn’t ruin a story. Even knowing the ending won’t stop you from enjoying a book. Still, I will hold back the endings.