This volume surveys Byzantium from Constantine's refounding of Constantinople to 1453. Oman traces Justinian's reconquests and codification, the iconoclast disputes, the rise of the themata, the Macedonian and Komnenian revivals, the Fourth Crusade, and the Palaiologan twilight. In lucid, vigorous prose he privileges political and military structures-sieges, diplomacy, and finance-while placing the empire within the wider Mediterranean. Using chronicles from Procopius to Anna Komnene, he offers a brisk synthesis, sympathetic to Byzantine resilience yet shaped by Victorian narrative habits. Charles Oman, renowned British military historian and longtime Oxford professor, brings to Byzantium the forensic eye behind The Art of War in the Middle Ages and his Peninsular War studies. Expertise in campaign topography, institutions, and numismatics informs his emphasis on strategy and revenue, and his wish to counter Gibbonian disdain with evidence of enduring statecraft. Recommended to students of medieval history, military enthusiasts, and curious general readers, this classic synthesis offers clarity and sweep. Read it as a foundational gateway to Byzantium and as a lucid companion alongside newer, more specialized scholarship. Quickie Classics summarizes timeless works with precision, preserving the author's voice and keeping the prose clear, fast, and readable-distilled, never diluted. Enriched Edition extras: Introduction · Synopsis · Historical Context · Brief Analysis · 4 Reflection Q&As · Editorial Footnotes.