Pleasant, met first with HR and then with the team lead of the department I was a candidate for. Both friendly, and it helps to be knowledgeable about the company, including authors and illustrators of some of their more popular books/series.
The process took 3 weeks. I interviewed at Candlewick Press (Somerville, MA) in Aug 2016
Interview
Received email asking for an in-person interview after 2 or 3 weeks after my application. There were two people interviewing. One from HR and one from the Art Department.