Seraphina and her friends says: " Tailwaggers are people's best friends." How can you enjoy the Tailwaggers experience? Seraphina and the Tailwaggers is the 4th book in the Sera Series... A Sensitive Heart Book for kids quadrility Hannah Hope is an American classroom teacher with 20-plus years teaching experience in inner-city schools. Hope has taught multiple subjects including, including Science, Social Studies, and College-Readiness. Katerina Valerieva is a Ukrainian illustrator represented by "Beytler Illustrations". Their vision is to illustrate stories that share a diverse perspective of our big blue marble.