“All of Statistics” by Larry Wasserman is a very good - if concise - introduction to statistics. Doesn’t require too much background, although the problems can

“All of Statistics” by Larry Wasserman is a very good - if concise - introduction to statistics. Doesn’t require too much background, although the problems can get pretty hairy. Unfortunately, many of the proofs in the field are based on “tricks” that accumulate, which makes the learning curve steeper for people who don’t have as much background in finding/using these tricks.