Historiography
Black, Jeremy. Maps and History: Constructing Images of the Past. New Haven & London, 1997.
Ancient History (General)
[CAH] The Cambridge Ancient History, 2nd ed. Cambridge, 2006.
Classical History (General)
[OCD] Hornblower, Simon, and Antony Spawforth, eds. Oxford Classical Dictionary, revised ed. Oxford, 2003.
[LSJ] Liddell, H.G., and R. Scott, eds. A Greek-English Lexicon. Edited by Henry Stuart Jones, 9th revised edition, with Supplement edited by P.G.W. Glare. Oxford, 1996.
This work is available in three sizes: the smallest and most basic lexicon, or "Little Liddell"; the medium, useful for the intermediate student of Ancient Greek, or "Middle Liddell"; and the large, comprehensive edition, or "Big Liddell". H.G. Liddell was the father of Alice Pleasance Liddell, upon whom Charles Dodgson (Lewis Carroll) based the fiction character of Alice in Alice in Wonderland and Alice Through the Looking Glass.
[OLD] Glare, P.G.W., ed. Oxford Latin Dictionary. Oxford, 1982.
[Lewis & Short] Lewis, C.T, and C. Short, eds. Latin Dictionarry Based on Andrews's edition of Freund's Latin Dictionary, reprint ed. Oxford, 1989.
This is especially useful for Silver Age and Late Antique Roman authors.
Boardman, John, Jasper Griffin, and Oswyn Murray, eds. The Oxford History of the Classical World, reprint ed. Oxford, 1993.
Talbert, Richard J.A., ed. Barrington Atlas of the Greek and Roman World, with map-by-map directory on CD-ROM. Princeton UP, 2000. An absolutely indispensable topographical reference.
Classical History (Specific Topics)
Ancient Greece (Periods)
Archaic Greece
Classical Greece
Hellenistic Greece
Ancient Rome (Periods)
Early Rome
Roman Republic
Roman Empire
Julio-Claudian Emperors
Augustus
Zanker, Paul. The Power of Images in the Age of Augustus, Translated by Alex Shapiro, reprint ed. UMichP, 1990.
Tiberius
Flavian Emperors
Adoptive and Antonine Emperors
Severan and Neo-Antonine Emperors
Military Emperors
The First and Second Tetrarchies
The Constantinian Resolution
Later Roman and Early Byzantine Empires
Ammianus Marcellinus, Res Gestae, ed. and tr. John C. Rolfe [Loeb Classical Library], 3 vols. Harvard UP, 1935-1939.
[PLRE] Jones, A.H.M, J. R. Martindale, and J. Morris, The Prosopography of the Later Roman Empire. 3 vols. in 4. Cambridge, 1971-92.
Medieval History (General)
[NCMeH] The New Cambridge Medieval History Cambridge, 2005.
Medieval History (Specific Topics)
Albigensian Crusade
Costen, Michael. The Cathars and the Albigensian Crusade. Manchester & New York, 1997.
O’Shea, Stephen. The Perfect Heresy: The Revolutionary Life and Death of the Medieval Cathars. New York, 2000.
Sumpton, Jonathan. The Albigensian Crusade. London & Boston, 1978.
Medieval England
Barlow, Frank. William Rufus [English Monarchs]. Berkeley, 1983.
Kelly, Amy. Eleanor of Aquitaine and the Four Kings, 12th printing. Cambridge, MA, 1966
Maddicot, J. R. Simon de Montfort. Cambridge, 1994.
Medieval France
Jager, Eric. The Last Duel: A True Story of Crime, Scandal, and Trial By Combat in Medieval France. New York, 2004.
Kendall, Paul Murray. Louis XI:The Universal Spider. New York, 1971.
Medieval Spain
Lowney, Chris. A Vanished World: Muslims, Christians, and Jews in Medieval Spain. Oxford, 2005.
Modern History (General)
[NCMoH] The New Cambridge Modern History Cambridge, 1957-1979.
Modern History Specific Topics)
The Eighty Years' War (De Nederlandse Opstand [De Tachtigjarige Oorlog])
Duke, Alastair. Reformation and Revolt in the Low Countries. London & New York, 2003.
Maltby, William. The Reign of Charles V. Houndmills, Basingstoke, Hampshire & New York, 2002.
Kamen, Henry. Philip of Spain. New Haven & London, 1997.
Islamic History
Bosworth, Clifford Edmund. The New Islamic Dynasties. Edinburgh UP. Edinburgh. 1996.
United States History (Specific Topics)
Colonial America (1493-1803)
French & Indian War (1754-1763)
American Revolution (1775-1783)
The Articles of Confederation and the Constitutional Convention (1777-1789)
Federalist Period (1789-1825)
Age of Jackson (1828-1845)
Civil War (1861-1865)