French
by Wikibooks

Introduction to Paleoanthropology
by Wikibooks, open books for an open world

Basic Physics of Nuclear Medicine/Print version
by Wikibooks, open books for an open world

European History
by Wikibooks, open books for an open world

Spanish/Print version - Wikibooks, open books for an open world
by Wikibooks, open books for an open world

Acoustics
by Wikibooks, open books for an open world

The Art of Public Speaking
by Dale Carnegie

Evolution through natural selection
by The Open University

Recipes for Disaster: an anarchist cookbook
by Crimethinc. Workers' Collective

Amusements in Mathematics (PDF)
by Dudeney, Henry Ernest, 1857-1930

Etiquette
by Emily Post

Roman Britain in 1914
by F. Haverfield

Learning, thinking and doing
by The Open University

Learning to learn
by The Open University