A book biography of environmentalist Wangari Maathai shows young readers exactly how much of a difference one determined person with a vision can make. Born near Mount Kenya, Wangari misses the trees of her homeland while she is in the United States studying. Upon her return, she finds a desolate land where buildings have displaced the trees of her childhood. Determined to turn things around, she plants nine seedlings and then persuades some of the neighborhood women to join her mission. The founder of the Green Belt Movement, Wangari ends up being jailed for protesting the government’s continuous raping of her country’s natural resources. Lauded for her exceptional work, she received the Nobel Peace Prize in 2004. The acrylic illustrations used by Winter pay tribute to this woman who created an army for peace and reclaimed the landscape of Kenya for the next generation. Winter uses tones and tints that enable readers to see the individual leaves and delight in the rows of trees, 30 million strong, planted by her followers.