Cecilia Payne refused to let the barriers of her time hold her back.

In early twentieth-century England, women couldn't even earn degrees at Cambridge, yet Cecilia pursued her dream of becoming a scientist. Her journey eventually led her to Harvard, where she peered deep into the stars and made a discovery that forever changed our understanding of the universe. Before Cecilia, scientists believed stars were like planets with hotter surfaces, but her work rewrote the story of the cosmos. Bold, brilliant, and ahead of her time, Cecilia Payne deserves a place alongside Isaac Newton, Galileo, and Albert Einstein.

With help from her trusty notebook, Talia thinks she has cracked the codes of middle school—what to wear, what to say, what not to say. But knowledge and mastery don’t always equate, and codes are like homework: just when you think you’re caught up, a new batch arrives. Luckily math brims with codes, and Talia, with her knack for observations and deductions, understands math. As part of a newly merged coed math team, Talia must navigate not only her own struggles with competition, leadership, and stage fright, but also the girl-boy codes and her jealousy of the team’s “perfect” new captain. Being on the same team, it turns out, doesn’t always mean you’re friends, but it does give you the space to try. Second in a charming spin-off series from the creator of the phenomenally popular Amelia books, this doodle-dense, STEM-centric diary will delight and engross readers navigating unfamiliar social terrain.