While I can't produce the second recommendation at a moment's notice and would have to think, the first one would unquestionably be "Attacking Faulty Reasoning:

While I can't produce the second recommendation at a moment's notice and would have to think, the first one would unquestionably be "Attacking Faulty Reasoning: A Practical Guide to Fallacy-Free Arguments" by T. Edward Damer. In hindsight, reading the book and fiddling with the examples in my head really has restructured the way I think: improved on how I critically analyze the information I take in and increased my capability for extended logical deduction.