Links to some important lecture notes:
https://arxiv.org/pdf/cond-mat/0701242.pdf
Quantum Computation and Quantum Information
Book by Isaac Chuang and Michael Nielsen
Quantum computing explained
Book by David McMahon
An introduction to quantum computing
Book by Phillip Kaye
Problems and Solutions in Quantum Computing and Quantum Information
Book by W.-H Steeb and Yorick Hardy