Hey,

These are some highly recommended and popular books for genetics-

1. Principles of Genetics by Gardner, Snustad, Simmons.
2. Concepts of Genetics by Klug and Cummings.
3. Igenetics by Peter.J.Russel
4.Genetics a molecular approach by T.A.Brown
5. Genetics by P.K.Gupta, Rastogi Publications

I do not know at what academic stage you are in,(meaning whether you are a school, bachelor's or master's student) but try going through these books.You might find your best.

Hope this helps.