We all know flow, even if we don't yet know what to call it: that blissful state of absorption, when you're so engaged with what you're doing that you don't notice the time passing. Psychologists now know that this still, almost meditative, state, brings us a host of mental health benefits: balance, tranquility, and less stress.
Jigsaw puzzling is an easy way to find this state, which is one of the reasons that they have boomed so dramatically in recent years. With the first of her Flow puzzles, Elin Sv