An Easy-read fact book

An introduction to various types of cars and their parts.

Explains the formation and characteristics of fossils and igneous, metamorphic, and sedimentary rocks. Also discusses meteors and meteorites.

Describes the development of weaponry from the flint arrowheads of the Stone Age up through the modern soldier's self-loading rifle, and mentions also the development of protective armor from wooden shields to modern helmets and protective jackets.

Describes the parts, growth, and uses of a variety of flowering plants.

Describes the characteristics and different uses of a variety of aircraft including balloons, dirigibles, gliders, and airplanes.

An account of the operation, usefulness, and history of helicopters.

Describes the origin, composition, orbit, and speed of different types of comets.

Examines the history, uses, working operations, and future of submarines and describes the various types.

An introduction to planets, constellations, comets, meteors, and other objects that can be seen in the sky at night, with suggestions for nocturnal observers.

An introduction to the history and uses of flags. Includes illustrations of national, international, signal, and motor racing flags.