How to Raise a VikingTop notch Good Housekeeping BEST PARENTING BOOKS Helen has a way to take big ideas and convey them with warmth and wisdom Dr Rangan Chatterjee A well researched study injected with humour and humanity Mail on Sunday What do Vikings know about raising children? Turns out, quite a lot After a decade of living in Denmark and raising a family there, Helen Russell noticed that Nordic children are different. They eat differently. They learn differently.