The Arabic Literature (in English) offers reminiscences: "Memories of Mosul's Libraries."
Of course it can't un-burn the books and irreplaceable manuscripts, but it can help those of us (like me) who never got to Mosul appreciate what is being destroyed.
I notice people keep comparing ISIS to the Visigoths, the Huns, etc. (This is particularly unfair to the Visigoths, IMHO). Are we forgetting that during 1933-1945 the country of Goethe, Schiller, and Beethoven embarked on an insane wave of genocide, tyranny, and especially book-burning, not to mention looting the great art of Europe?
I guess we are.