I loved Paul Tomassi's Logic. If like me you find all the symbols intimidating and fear that you're not mathematically-minded, try it. It's like the iPhone for learning logic. Everything is clearly explained and explained to an extremely accessible degree. It's such a shame that the author died very early, I'll never see it updated or revised.

https://www.amazon.co.uk/Logic-Paul-Tomassi/dp/0415166969/re...