I saw two books on the floor in the playroom and asked Chris about them. He replied that Lila and Ada each wanted a book. "This is what they picked."
Since neither Ada nor Lila can really read, I am sure Lila was attracted to the Heimel book by the heels. Both girls are really into heels right now. Did Ada choose the Gogol because she has a thing for Russian writers or for herringbone?