• Jiriček, Constantin Josef (2008). History of the Bulgarians (Geschichte der Bulgaren) (bằng tiếng Đức). Frankfurt: Textor Verlag GmbH, digital facsimile of the book published in Prague, 1878. tr. 587 pages. ISBN 3-938402-11-3. 
• Crampton, R. J. A Concise History of Bulgaria (2005) Cambridge, UK; New York: Cambridge University Press ISBN 978-0-521-61637-9
• Detrez, Raymond Historical Dictionary of Bulgaria (2006) Second Edition lxiv + 638 pp. Maps, bibliography, appendix, chronology ISBN 978-0-8108-4901-3
• Lampe, John R., and Marvin R. Jackson Balkan Economic History, 1550-1950: From Imperial Borderlands to Developing Nations (1982)
• Lampe, John R. The Bulgarian Economy in the Twentieth Century (1986) London: Croom Helm ISBN 0-7099-1644-2

Trước năm 1939

• Monroe, W. S. "Bulgaria and her people, with an account of the Balkan wars, Macedonia, and the Macedonian Bulgars (1914)"
• Fox, Frank, Sir Bulgaria (1915) London: A. and C. Black, Ltd., book scanned by Project Gutenberg
• Hall, Richard C. Bulgaria's Road to the First World War (1996) New York: Columbia University Press ISBN 0-88033-357-X
• MacDermott, Mercia (1962). A History of Bulgaria, 1393-1885. London: Allen & Unwin. 
• Perry, Duncan M. Stefan Stambolov and the Emergence of Modern Bulgaria, 1870-1895 (1993) Durham: Duke University Press ISBN 0-8223-1313-8
• Runciman, Steven (1930). A History of the First Bulgarian Empire. G. Bell & Sons, London. 
• Zlatarski, Vasil N. (1934). “Prof. Dr.”. Medieval History of the Bulgarian State (bằng tiếng Bulgarian). Royal Printing House, Sofia. Truy cập ngày 5 tháng 8 năm 2007.  Bảo trì CS1: Ngôn ngữ không rõ (link) (Васил Н. Златарски, История на българската държава през средните векове, Част II, II изд., Наука и изкуство, София 1970)

Thế chiến II

• Bar-Zohar, Michael Beyond Hitler's Grasp: The Heroic Rescue of Bulgaria's Jews
• Groueff, Stephane Crown of Thorns: The Reign of King Boris III of Bulgaria, 1918–1943
• Todorov, Tzvetan The fragility of goodness: why Bulgaria’s Jews survived the Holocaust: a collection of texts with commentary (2001) Princeton: Princeton University Press ISBN 0-691-08832-2

Thời kỳ cộng sản

• Todorov, Tzvetan Voices from the Gulag: Life and Death in Communist Bulgaria
• Dimitrova, Alexenia The Iron Fist — Inside the Bulgarian secret archives

Hiện tại[cập nhật]

• Bell, John D., ed. (1998). Bulgaria in Transition: Politics, Economics, Society, and Culture after Communism. Westview. ISBN 978-0-8133-9010-9
• Ghodsee, Kristen. The Red Riviera: Gender, Tourism and Postsocialism on the Black Sea. Durham: Duke University Press. ISBN 978-0-8223-3662-4. 
• Ghodsee, Kristen. Muslim Lives in Eastern Europe: Gender, Ethnicity and the Transformation of Islam in Postsocialist Bulgaria. Princeton: Princeton University Press. ISBN 978-0-691-13955-5. 

Sách hướng dẫn

• Annie Kay Bradt Guide: Bulgaria
• Paul Greenway Lonely Planet World Guide: Bulgaria
• Pettifer, James Blue Guide: Bulgaria
• Timothy Rice Music of Bulgaria
• Jonathan Bousfield The Rough Guide To Bulgaria