In the late 1930s, GM Reuben Fine was a top contender for the World Championship. Here are a few problems from his 1952 book The Middle Game in Chess. (The book was republished in 1993, but the Amazon reviews of that edition suggest that it's full of typographical errors.)
I learned a lot from this book as a teenager, and picked up a copy of the 1952 edition on eBay.
White to play and win
As a rule of thumb, it's not good to be down by a queen, knight, and pawn....