I recently convinced several people to read Valera Luiselli's The Story of My Teeth, not by describing the main character or his story or explaining the concept behind the book, but by praising how short it was. As if its brevity was its greatest virtue. Perhaps it was.
In this way I "sold" a book I didn't really like (I admire and respect it — I just didn't connect with it) because I had nothing better to say about it. It's really short! And an impromptu book club came into being.
I've read a lot of short books this year. It's all that my time and attention can hold.
Short novels means less commitment, cuz I just don't have it in me these days. Short novels sustain my interest, in ways most 400-page novels just can't. I can slip from one genre to another. More variety. I'm sampling more authors. And I have a sense of accomplishment. I can still read and finish books! And I can convince other people to read them too. Short novels are so digestible.