Casey and Bella Books for Kids 1.0 has been released for iOS. Meet the real Casey and Bella dogs from the popular children’s book series. Casey and Bella are not just cartoon doggies in a book series, they are real dogs that travel to different cities and schools to meet children and teach children to believe in themselves and to dream big. Casey is a resourceful Jack Russell Terrier, and Bella is an energetic, mischievous TeaCup Yorkie. In each book the doggy duo sneaks out on adventures.