Dr. Jonas Salk finds the cure for polio in this inspiring, educational, and timely nonfiction picture book.Jonas Salk wasn't seen as a brave hero--not at first. As a child he was quiet and unassuming, but Jonas dreamed of tikkun olam, the Jewish phrase for "healing the world." He saw the polio virus strike his city, and he knew that with determination and hard work, he could be the one to stop its spread. So he grew up to study medicine, ultimately creating the polio vaccine that saved untold numbers of lives--and healed the world! With Dean Robbins's inspiring text and Mike Dutton's dynamic illustrations, Thank You, Dr. Salk! is a true story of trials, triumph, and what it takes to achieve your dreams. An author's note provides additional insight into Dr. Salk's life and impact.