This collection includes all seven volumes of The Adventures of Bella & Harry:

Volume One: Let’s Visit Paris!, Let’s Visit London!, and Christmas in New York City!

Volume Two: Let’s Visit Venice!, Let’s Visit Cairo!, and Let’s Visit Rio de Janeiro!

Volume Three: Let’s Visit Athens!, Let’s Visit Barcelona!, and Let’s Visit Beijing!

Volume Four: Let’s Visit Edinburgh!, Let’s Visit Rome!, and Let’s Visit Berlin!

Volume Five: Let’s Visit Istanbul!, Let’s Visit Jerusalem!, and Let’s Visit Vancouver!

Volume Six: Let’s Visit Dublin!, Let’s Visit Maui!, and Let’s Visit Saint Petersburg!

Including Volume Seven (in Spanish): ¡Visitemos París!, ¡Visitemos Londres!, ¡Visitemos Barcelona!, y ¡Navidades en La Ciudad de Nueva York!