A heartfelt story about a girl who joins a new class and, step by step, learns to be herself, trust people, make friends, and believe in her own strength. “An Equation with Two Unknowns” is a novel for girls by the well-known writer Elena Usachyova. It’s a story about how hard it is to be a newcomer among unfamiliar kids, how to find your place in a group, whether it’s worth chasing other people’s approval at any cost, how to accept others as they are, and—most importantly—how to learn to accept and support yourself. The book will bring both smiles and worries, and the confidence that real friendship comes precisely when it’s needed the most. For middle-school readers.