Seconded. Spivak is ideal for self-study because there is an answer book for it. I tried Apostol first, and, although it's a good book, I had no idea if I was

Seconded. Spivak is ideal for self-study because there is an answer book for it. I tried Apostol first, and, although it's a good book, I had no idea if I was doing the exercises right because I didn't know what a proof was supposed to look like.