Do you have something that you do good, really good? Katherine, Dorothy, Mary and Christine all do Math, really good.  They do math so you good you could call their math skills out of this world!  These four women each played a pivotal role in the Great Space Race during the 1950s.  They were the first women to become engineers, computer programmers and meeting attendees at NASA.  This was all the more amazing because they did it at a time that women and people of color were not yet given full rights under the law.  If you like stories where people help each other, persistence pays off, and people make a big impact on the world around them, then you should read this book.  (Prepared by: Helen Prince, Gold Hill Elementary School, princeh@fortmillschools.org)  (South Carolina Book Awards, 2020-2021)