The below links are to resources I've found useful & interesting. None of the providers or authors have asked, or paid to be listed on these pages.
Carl Richards is a Certified Financial Planner (and an American, but don't hold that against him). His speciality is making complicated concepts simple with a sharpie and piece of card. Carl's books (The Behavior Gap & The One Page Financial Plan) are essential reading for advisers and "civillians" alike.
An old article, but one I often share with clients to demonstrate why it's essential to hold firm in turbulent markets.