From the time that man began to roam the planet, they were curious about light. Over time, they learned how to not only measure it, but to harness its power. This book follows that progress from the time of Galileo to the research being done today. It includes informative sidebars on scientists and great minds in the exciting realm of light.

Understanding how the stock market works is essential in today’s economy. This book offers readers straightforward explanations of the essentials, including the definition of stocks, how they’re bought and sold, how they’re priced, commissions, splits, and more.