[in this moment, clarke feels like just grabbing the sketchbook from him before he delve any further in that particular one but she knows that would only draw attention to the fact she hadn't intended for him to see it. his question doesn't help either because he was the only person she did that for.

clarke tries to play it off casually though while her mind scrambles for an answer without outing herself entirely] Yeah— I figure that's easier for organization so everything is all in one place when I'm looking for something I'm working on. [technically that's not a lie since she does like to keep her work organized]