Islam

Free to read here, from Project Gutenberg.

A Dictionary of Islam

Thomas Patrick Hughes

De Koran

Albin de Kazimirski Biberstein

Dutch

The Preaching of Islam: A History of the Propagation of the Muslim Faith

Thomas Walker Arnold, Sir

A Critical Exposition of the Popular 'Jihád'

Cherágh Ali

Alroy: The Prince of the Captivity

Benjamin Disraeli, Earl of Beaconsfield

The Faith of Islam

Edward Sell

Christianity and Islam in Spain, A.D. 756-1031

Charles Reginald Haines

The Jew, The Gypsy and El Islam

Richard Francis Burton, Sir

The New World of Islam

Lothrop Stoddard

Arabia: The Cradle of Islam

Samuel Marinus Zwemer

Princess Badoura: A tale from the Arabian Nights

Laurence Housman

Notes on Islam

Ahmed Hussain, Sir

Development of Muslim Theology, Jurisprudence, and Constitutional Theory

Duncan Black MacDonald

Islam, Her Moral And Spiritual Value: A Rational And Pyschological Study

Arthur Glyn Leonard

Sketches from Eastern History

Theodor Nöldeke

Pan-Islam

G. Wyman Bury

Two old faiths

J. Murray Mitchell and William Muir, Sir, also an audiobook

Modern Persia

Mooshie G. Daniel

The Future of Islam

Wilfrid Scawen Blunt

Mohammedanism

C. Snouck Hurgronje

Oriental Religions and Christianity

Frank F. Ellinwood

Mahomet, Founder of Islam

Gladys M. Draycott

La doctrine de l'Islam

Bernard Carra de Vaux

French

Christianity and Islam

Carl Heinrich Becker

The story of Islam

Theodore R. W. Lunt

History of the Moors of Spain

Florian

Nederland en de Islâm

C. Snouck Hurgronje

Dutch

Islâm

Syed Ameer Ali

Islam

Annie H. Small

Alroy: Romani

Benjamin Disraeli, Earl of Beaconsfield

Finnish

The revolt in Arabia

C. Snouck Hurgronje

Islam saharien

Jean Pommerol

French

The Islam of Mohamed

S. Khuda Bukhsh