- E-bookHooray for Construction Workers!Kurt Waldendorf
- E-bookHooray for Veterinarians!Kurt Waldendorf
- E-bookHooray for Chefs!Kurt Waldendorf
- E-bookHooray for Farmers!Kurt Waldendorf
- E-book¡Que vivan los veterinarios! (Hooray for Veterinarians!)Kurt Waldendorf
- E-book¡Que vivan los chefs! (Hooray for Chefs!)Kurt Waldendorf
- E-book¡Que vivan los obreros de construcción! (Hooray for Construction Workers!)Kurt Waldendorf
- E-book¡Que vivan los granjeros! (Hooray for Farmers!)Kurt Waldendorf
- E-bookHow Strong Is an Ant?Kurt Waldendorf
- E-bookHow Tall Is a Giraffe?Kurt Waldendorf
- E-bookHow Deep Is the Ocean?Kurt Waldendorf
- E-bookHow Fast Is a Cheetah?Kurt Waldendorf
- E-bookHow Far Is the Sun?Kurt Waldendorf
- E-bookHow Slow Is a Sloth?Kurt Waldendorf
- E-bookHow Big Is a Blue Whale?Kurt Waldendorf
- E-bookHow Small Is a Hummingbird?Kurt Waldendorf