Who doesn’t love the fashions on Mad Men? On Sunday, we got a chance to ask costume designer Janie Bryant all about the looks we saw on screen—live! And last night’s episode included some unforgettable looks from Peggy’s pastel blue suit and Joan’s rose printed polyester dress to Megan’s yellow California girl separates and Betty’s classically pretty dress coats. Janie was on hand to answer all of your burning Mad Men questions, like how long does it take for a look to come to life, which ‘60s designers are important to Bryant, who’s her favorite character to dress, and much, much more. Scroll down for the complete Q&A!

To get more exclusives on the looks seen in last night’s episode, read our exclusive tell-all on each of the leading ladies’ looks straight from Janie Bryant herself.