"Who Was Albert Einstein?" by Jess Brallier is a trade paperback book from the "Who Was?" series published by Penguin Young Readers Group in 2002. The biography is aimed at a juvenile audience and explores the life of the famous physicist through engaging storytelling and illustrations. With 112 pages, this book offers an accessible and informative look at the historical and scientific significance of Albert Einstein, making it a valuable addition to any young reader's library.