Nelson, Nigel

Introduces the making of all kinds of codes -- Morse code, bar codes, map codes, flag codes, and famous secret codes, explaining how these codes are used to communicate.

Explores how signs are used every day to pass on information.

Traces the origins of writing from early pictographs to modern alphabets, including Sumerian and Braille alphabets and Roman and Arabic numerals.

Introduces the ways that messages, ideas, and feelings can be communicated without words.

Text and "see-through" windows reveal the workings of the human body.

Describes the moon, sun, and planets as well as stars, galaxies, and space travel, and features "picture windows" containing multilayered illustrations.

Text and accompanying photographs discuss the solar system, space travel, and why Earth is a special planet.