Smithsonian handbooks

Discusses more than 500 specimens, includes color photographs, and provides concise descriptions and essential identification information.

A field guide to trees around the world, each accompanied by a color photograph and a description of key features and points of differentiation.

An illustrated guide to the stars and planets, providing a general introduction to astronomy; containing a detailed guide to the Solar System; featuring an alphabetical catalog of the constellations; and including a month-by-month companion to the night sky.

Provides descriptions and annotated photographs of over five hundred mushrooms, and includes season, size, edibility, and other indicators.

Provides descriptions and annotated photographs of over five hundred species of seashells, and includes distribution maps, as well as range, occurrence, and size indicators.

Provides detailed information on the historic and symbolic significance of over 300 national and international flags as well as those representing major organizations around the world.

A guide to identifying herbs that provides descriptions of more than seven hundred species and explains what herbs are, which parts are collected and prepared, and how they are used.

A field guide to butterflies and moths around the world, each depicted by a full-color photograph with a caption that describes key features and points of differentiation.