Before the dinosaurs

By John G. Head

A brother and sister travel back in time to the late Devonian period where they observe the first amphibians.

The infant earth

By John G. Head

As a brother and sister travel back in time to when the first living things were appearing on Earth, the reader learns about prehistoric life.

Before the dinosaurs

By John G. Head

A brother and sister travel back in time to the late Devonian period where they observe the first amphibians.

World of the Reptiles Ages of the Earth

By John G. Head

When dinosaurs ruled

By John G. Head

On their Space-Time Shuttle tour of the prehistoric world, a brother and sister land in the Jurassic Period where they see the largest and most ferocious land animals that have ever lived.

Great Ice age

By John G. Head

A brother and sister travel back in time to several epochs in the Cenozoic Era and observe a variety of prehistoric mammals in their natural environment.

Tax reform in the 21st century

By

Tax conversations

By

Flattening the Tax Rate Scale

By Head, Krevers, John G. Head

Fairness in Taxation

By Allan Maslove