OK, I bought your stinking book. I learned calculus using Apostol in 1962, so it had better be good. Apostol was stinking hard, so yours had better be easy to

OK, I bought your stinking book. I learned calculus using Apostol in 1962, so it had better be good. Apostol was stinking hard, so yours had better be easy to understand. :-) I'm not sure what I need it for. My children are all adults, although I did teach them calculus in high school.