The Number Devil : A Mathematical Adventure Condition:Like New Richard Koch showed readers how

Richard Koch showed readers how to put the 8020 Principle - the idea that 80 percent of results come from just 20 percent of effort -

individually and as a team

A set of tools for mastering the one skill standing between us and success: the ability to ask for the things we need to succeed

and best of all

For more than four centuries

The Number Devil : A Mathematical Adventure Condition:Like New Richard Koch showed readers howTwelve year old Robert hates his maths teacher: he sets his class boring problems and won't let them use their calculators. Then in his dreams Robert meets the Number Devil, who brings the subject magically to life, illustrating with wit and charm a world in which numbers can amaze and fascinate, where maths is nothing like the dreary, difficult process that so many of us dread. The Number Devil knows how to make maths devilishly simple. Author: Hans