HOW TO READ THIS BOOK

The stories and lessons contained within the rich array of pages you hold in your hand have been laid out in a carefully planned order. Each one in turn has its own little gem or treasure trove of wisdom to reveal to you, and by way of introduction to the individual sections you will see that they are headed by one of the following five themes:

images 90 minutes that changed the world
images The science of 90 minutes
images Your 90-minutes-a-day ...

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