David Feldman

Books
Who Put The Butter In Butterfly? Who Put The Butter In Butterfly?
Who Put The Butter In Butterfly?
2009
Imponderables Imponderables
Imponderables
2009
Imponderables(R): Science Imponderables(R): Science
Imponderables(R): Science
2009
Why Do Clocks Run Clockwise? Why Do Clocks Run Clockwise?
Why Do Clocks Run Clockwise?
2009
Do Elephants Jump? Do Elephants Jump?
Do Elephants Jump?
2009
When Do Fish Sleep? When Do Fish Sleep?
When Do Fish Sleep?
2009

Audiobooks
Imponderables: Answers to the Most Perplexing and Amusing Mysteries of Everyday Life (Unabridged) Imponderables: Answers to the Most Perplexing and Amusing Mysteries of Everyday Life (Unabridged)
Imponderables: Answers to the Most Perplexing and Amusing Mysteries of Everyday Life (Unabridged)
2021
Do Penguins Have Knees? (Abridged) Do Penguins Have Knees? (Abridged)
Do Penguins Have Knees? (Abridged)
2006
When Do Fish Sleep and Other Imponderables (Abridged) When Do Fish Sleep and Other Imponderables (Abridged)
When Do Fish Sleep and Other Imponderables (Abridged)
2007
WHY DO CLOCKS RUN CLOCKWISE (Abridged) WHY DO CLOCKS RUN CLOCKWISE (Abridged)
WHY DO CLOCKS RUN CLOCKWISE (Abridged)
2006
How Does Aspirin Find a Headache? (Abridged) How Does Aspirin Find a Headache? (Abridged)
How Does Aspirin Find a Headache? (Abridged)
2006
When Did Wild Poodles Roam the Earth? (Abridged) When Did Wild Poodles Roam the Earth? (Abridged)
When Did Wild Poodles Roam the Earth? (Abridged)
2006