Need a head-start for new topics in maths I am a maths enthusiast ( but from electrical engineering background ) . In my college I had two math courses on differential and integral calculus and I had choosen an elective in complex-analysis . I dont have the opportunity of availing any other math courses in my remaining college life , but I want to learn more . I now want to move into the realm of topics like number theory , advanced algebra . I feel that these topics are more challenging and stimulating compared to that of calculus . Could someone please help me out with the possible list of books/resources for the given topics .

A fantastic book to begin your studies in Abstract Algebra is " _A Book of Abstract Algebra_ " by Charles Pinter. It is a Dover publication that can be purchased inexpensively. The prerequisites are minimal; the writing style is clear. It is an extremely enjoyable text!