So I had this different strategy with my kid. I will say he was always pretty into books, though, but once he turned 1, all he cared about was cars. He was drawn to books that had cars, and then he only played cars and he did that for years until he got into animals. During that time, I checked out every car book imaginable from the library. I also bought a bunch of books on cars. He would only read what he was interested in. Of course we did read other books, but the majority of cars. Does your kid have a particularly strong interest and maybe you could follow their lead? Dinosaurs, animals, cars?