Anonymous 
Germany, Turkey and Armenia: A Selection of Documentary Evidence Relating to the Armenian Atrocities from German and Other Sources [EPUB ebook] 

This is a contemporary history that documents the Armenian Genocide at the hands of the Ottoman Turks in the early 20th century. From the intro:

‘The blue book as to the treatment of the Armenians which has recently been issued (Miscellaneous, No. 31, 1916) contains a large mass of evidence relating to facts which, incredible as they are, have been so incontrovertibly established that no doubt as to their existence can possibly be entertained by any reasonable person. The greater part of the documents included in the blue book does not, however, throw much light on the attitude taken by the German public and the German Government with reference to the crimes which have been committed. The object of this pamphlet is to bring before the public a collection of documents specially selected for the purpose of throwing light on this subject. Some of them are included in the blue book, but the documents Nos. 1, 6, 9, 10 and 12 have not, as yet, been published in Great Britain or the United States. The two documents printed in the Appendix have no direct bearing on the questions relating to the German attitude. But as they came into the possession of the British authorities after the publication of the blue book and are of special interest as giving the impressions of two intelligent Turkish officers, 1 it was thought right to include them. 

A perusal of the documents included in this collection must convince the reader of three things: (1) that the Germans in Armenia are as full of indignation, and as anxious to see a stop put to the methods of extermination applied by the Turkish Government, as the most ardent friends of the Armenian cause in this country; (2) that, owing to the wilful or reckless perversion of the facts in the German press and the German pamphlet-literature, and owing also to the indifference and credulity of the general German public, the true state of things is unknown or ignored by the majority; (3) that the German Government could have stopped the outrages if they had desired to do so and that their non-interference was not in any way due to ignorance of the true facts.’