Even in warm climates, a working car heater is much appreciated on chilly mornings. In cold climates, a properly functioning ...

Roula Khalaf, Editor of the FT, selects her favourite stories in this weekly newsletter. This article is part of the Financial Times free schools access programme. Details/registration here ...

The P/B ratio shows how a stock's market price compares to its book value. It helps gauge whether a stock is undervalued or overvalued relative to its net assets.