Discovering the world of the three-toed sloth

By John Hoke

Discusses the characteristics and habits of the three-toed sloth. Observations were made by the author while keeping several sloths in his home.

The first book of the jungle

By John Hoke

Snakes

By John Hoke

Solar Energy

By John Hoke

Ecology

By John Hoke

Discusses the basic principles of ecology with emphasis on the way man has changed his environment.

Solar energy

By John Hoke

Discusses and describes solar cells, techniques for using solar energy, solar heating of a house, and possible future uses of solar energy. Includes school projects and a materials list.

Aquariums

By John Hoke

Describes different kinds of aquariums, how to set them up, and how to care for them.

Terrariums First Book S.

By John Hoke

The First Book of Snakes

By John Hoke

Skylab

By Jeff Kovel, Mauricio Villarreal, Randy Gragg, John Hoke, Skylab