Teresa and Bernard Villegas, M.D. were inspired by their own experiences of building their family using IVF with donor assistance. When they couldn't find a children's book to suit their needs of how they wanted to tell their own children - one that included science, the help of others and the possibility of a multiple birth, they decided to author their own. The How We Became a Family series uses clear, nurturing text and sophisticated yet relatable illustrations to explain how parents had help creating their family and how that made their children all the more wanted and loved.