Last week our local library had a book sale. This particular sale used to be a favorite of mine, I'd always find good book. I hadn't been in a while, but I thought it would be fun to take Miranda and Ivy and let them pick out some new reading material. I happened to find a stack of old readers and it just reminded how much I loved doing this sort of thing. So I decided to try selling vintage books on Etsy.
I debated whether or not to open a second shop--in the forums I'd always seen sellers cautioned against an eclectic mix, saying it was better to specialize. But then I found this post at Etsy for Everyone which suggests it might be to your advantage to find a way for your items to complement each other and maintain them in the same shop.
So I've decided to give that a try. I added a note to my shop introduction that "I've added a new section to my shop, featuring the sort of vintage children's books that inspire my clothing designs." Now that you can custom sort items in your shop, I moved the books to the last page so it doesn't confuse people who are used to selling books. My main reason for doing this (other than not wanting to bother with maintaining a second shop) is that I think few people shop Etsy by individual stores. I know I always search by item. Once I find a cool item, I might check out the rest of the store, but I'm more concerned by how it's organized rather than specialization.