Why are we calling them "adult" coloring books? They're coloring books. I can't be the only one who gets a little annoyed when people do stuff like that, "Oh I wanna do this but it might seem childish let me change the name" It's not adult coloring books, you bought a coloring book. It's not a graphic novel, you bought a comic book. Enough already. If you don't have the nerve to call it what it is, you're probably not really that into it and are just riding a trend.