I only read L.M. Montgomery's Anne of Green Gables for the first time earlier this year. I watched the series with my Granny and loved it but never got around to the book. It was a rare (for me) case of hoping the book lived up to my happy memories of the film and thankfully it really did.
As a side note, I watched 9 minutes of Anne with an E on Netflix last night and sorry to anyone who adores it, but there's only room in my heart for one Anne.
Any children's books you read first as an adult and enjoyed?