This is interesting: Matt Mullin, community relations manager for Digital Book World, tweeted today from the Tools of Change for Publishing Conference, that Pinterest has driven more traffic to Chronicle Books’ site than Facebook since December.

Apparently, Guinevere de la Mare — the community manager at Chronicle Books — made the comments during a talk on “Building Local and Global Communities around Your Brand, Business and Properties” at the conference. The statement is curious given that Chronicle Books has about 2,800 followers on Pinterest and almost 20,600 Facebook fans.

But the company certainly has some cool boards on Pinterest. Their offerings go way beyond just book covers with boards like “Geek Chic,” “Pretty Parties” and “San Francisco Days.” De la Mare’s remarks also speak to higher levels of engagement on Pinterest. I guess that shouldn’t be surprising given the site’s recent rapid growth.