Not to date myself (too late), but I loved reading the Bobbsie Twins and Nancy Drew books. I was also really into Grimm's Fairy Tales. There was a series of books that were fictional accounts of how other kids lived that I liked too. I don't remember who wrote them, but they had titles like Strawberry Girl (a migrant family) and Frontier Boy (a family travelling to settle out west). I really don't remember ever reading picture books my self as a child, but my kids loved all of the Seuss books and Madelaine books.