This fun and eye-catching puzzle features portraits of 15 trailblazing women from the fields of science, technology, engineering and mathematics, from well-known pioneers like Marie Curie and Ada Lovelace to other inspiring yet unsung heroines. With exquisite artwork by artist and author Rachel Ignotofsky, it is a satisfying and challenging puzzle for budding scientists, or those championing the great contributions that women have made to all branches of science.

Liberty and justice for all is a defining tenet of the United States. The proclamation in the Declaration of Independence of a self-evident truth that all men are created equal reminds us that the struggle to define and protect every American's liberties has been ongoing and very complicated.

True equality is elusive for half of the population because of the omission of one simple amendment to the Constitution that ensures that the equality of women is explicit. Proposed in 1923, the Equal Rights Amendment, which would guarantee equal rights for women, remains unratified. Women’s freedom to vote was won in 1919 after a hard-fought battle. Over 100 years on, women still persist in the fight for equality, while society’s views have shifted and traditional gender roles have evolved and dissolved.