Sprint: How to Solve Big Problems and Test New Ideas in Just Five Days by Jake Knapp with John Zeratsky and Braden Kowitz is a new book in which the Google Ventures’ design partner shares the ...

The image of a clock might spring to mind, maybe even a time-lapse video of a clock’s hands traveling in a circle. But 25 years ago, stay-at-home mom turned entrepreneur Jan Rogers found a better way.

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