Charlie Brown's 'Cyclopedia: Super Questions and Answers and Amazing Facts, Vol. 2: Featuring All Kinds of Animals from Fish to Frogs

Charlie Brown's 'Cyclopedia: Super Questions and Answers and Amazing Facts, Vol. 1: Featuring Your Body

Charlie Brown's 'Cyclopedia: Super Questions and Answers and Amazing Facts, Vol. 3: Featuring All Kinds of Animals from Dinosaurs to Elephants

Charlie Brown's 'Cyclopedia, Vol. 15: Featuring Electricity and Magnetism

Charlie Brown's 'Cyclopedia: Super Questions and Answers and Amazing Facts, Vol. 8: Featuring Stars and Planets

Charlie Brown's 'Cyclopedia, Vol. 13: Featuring Machines and How They Work

Charlie Brown's 'Cyclopedia, Vol. 14: Featuring Sound, Light and Air

Charlie Brown's Super Book of Questions and Answers About All Kinds of Animals

Charlie Brown's 'Cyclopedia: Super Questions and Answers and Amazing Facts, Vol. 9: Featuring the Earth, Weather and Climate

Charlie Brown's 'Cyclopedia: Super Questions and Answers and Amazing Facts, Vol. 4: Featuring Cars and Trains and Other Things that Move

Charlie Brown's 'Cyclopedia, Vol. 5: Featuring Boats and Other Things that Float