Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Good summary of 100 or so pitfalls and perils

This books, short and to the point of what to do and what not to do with SmallTalk. Simple, and concise, the book covers issues of style that actually can and do apply to anyone who is interested in creating and leaving quality code in place for others to learn from and prosper. Almost a book about Code Karma.