My ds loves books always has but when he was littler we'd read short books to him. Theres a fantastic lot of books called "that's not my...." they are touch books and ds has always loved them. You could try something like that.
Yeah, they're the Usborne touch and feel books, beautiful things. DD loved "That's not my mermaid". Also, maybe things like Spot books - the lift the flaps might keep her involved for a little longer as they are interactive and she needs to lift the flap to see what Spot is doing. Another massive hit with young toddlers is the John Butler books "If you see a kitten" etc. Really simple, great illustrations and DD (21 months) says the noises on each page.

I used to work in a children's specialist bookshop. You're going great and the biggest key is don't give up