About the work
The work is divided into the prologue and 15 books (book summaries below are, of course, modern interpretations).

Prologue The difficulties of writing history, reasons to write this work, mourning for her husband
Book 1 : Alexius becomes general and Domestikos ton Scholon (Alexius youth - Urselius' revolt - Nicephorus Bryennios revolt - Normans prepare invasion)
Book 2 : The Komnenian revolt (Envy against the family - Causes of uprising - The escape - Rebels proclaim Alexius as emperor - Melissenos revolts - Komnenians seize Constantinople - Emperor Nikephoros III Votaneiates abdicates)
Book 3 : Alexius as Emperor (1081) and the internal problems with Doukas family (Maria of Alania and her son Constantine - Dismissal of her rumoured relationship with Alexius - About Alexius and his wife Irene - Alexius invents new ranks - Alexius publicly regrets for his soldiers crimes - Anna Dalassena (Alexius mother) is given imperial authority - About Anna Dalassena - Alexius' military preparations and alliances - Turks spread in Asia Minor - Normans cross Adriatic Sea).
Book 4 : War against Normans (1081-1082) (Robert Guiscard besieges Dyrrhachium - Venetian allies defeat Normans - Alexius arrives with his army - Normans win the Battle of Dyrrhachium, Alexius hardly escapes)
Book 5 : War against Normans (1082-1083) and first clash with the heretics (Financial collapse - Seizure of church property - Bohemund against Alexius - Alexius finally wins with a strategem - Prosecution of John Italus)
Book 6 : End of war against Normans (1085), death of Robert Guiscard, the Turks (Alexius recaptures Kastoria - Persecution of Manicheans (Paulicians)- Alexius in front of the Church Court - Conspiracy and revolt - The alliance with Venice - Death of Guiscard - Persecution of wizards and astrologers - Births of porphyrogenitoi - Alexius against the Turks - The Scythian threat (Pechenegs))
Book 7 : War against Scythians (1087-1090) (Beginning of hostilities - Crushing defeat of the imperial army - Cumans defeat Scythians, truce - Scythians violate truce - Activity of Turkish pirate Tzachas in western Anatolia - Expedition against Scythians)
Book 8 : End of Scythian war (1091), plots against the Emperor (Hostilities continuing - Crushing of Scythians at Levunium - Final success - Conspiracies and revolts)
Book 9 : Operations against Tzachas and Dalmatians (1092-1094), conspiracy of Nicephorus Diogenes (1094) (Operations against Tzachas - Operation in Crete and Cyprus - Elimination of Tzachas - Conspiracy of Nicephorus Diogenes - Capitulation of Dalmatians - Complementary to Diogenes)
Book 10 : One more heresy, war against Cumans, Beginning of 1st Crusade (1094-1097) (Neilos and Vlahernites - War against Cumans - Operations against Turks - Arrival of the first Crusaders - Crushing of Crusaders under Koukoupetros (Peter the Hermit) - Hugh of France - Sea surveillance by the Romans - Godfrey of Bouillon - Count Raul - Crusade leaders make homage to the Emperor - Bohemund)
Book 11 : 1st Crusade (1097-1104) (Crusaders besiege Nicaea - Liberation of Nicaea - Crusaders' successful operations - siege of Antioch - Successful Roman operations in Asia Minor - Capture of Antioch and Jerusalem - Operations in Asia - Massacre of Normans (Lombards) Crusaders by the Turks - Bohemund refuses to return Antioch to the Empire - Operations in Cilicia - Pisan fleet invades islands - Naval war with Genoans -Operations against Bohemund - Bohemund pretends to be dead)
Book 12 : Domestic conflicts, Norman preparations for the 2nd invasion (1105-1107) (Bohemond prepares landing to Illyrian coast - Operations of Tancred in Cilicia against the Empire - Queen Irene - Alexius organizes defense in the west - Conspiracy of Anemades - Georgios Taronites revolts in Trapezous - Isaacius Kontostefanos fails to guard the coast against Norman fleet - Beginning of Norman invasion)
Book 13 : Aaron's conspiracy, second Norman invasion (1107-1108) (Aaron's conspiracy - Siege of Dyrrhachium - Alexius tricks - Operations in mainland - Naval operations - Bohemund asks for peace - Peace negotiations - Bohemund's profile - Negotiations between Alexius and Bohemund - The Treaty of Devol)
Book 14 : Turks, Franks, Cumans and Manicheans (1108-1115) (Roman successes against the Turks - Problems with the Franks - Naval and land operations - Emperor's health problems - Operations against the Turks - Anna speaks for her methods in writing history - Prevention of a Cuman raid - Alexius fights manichaeism by persuasion or persecution)
Book 15 : Last expeditions, the Bogomils, death of Alexius (1116-1118) (War against the Turks and the new battle tactics - Victorious battle - Peace with the Turks - Sultan is murdered by his brother - Alexius builds the Orphanage - Suppression of Bogomils, burning of their leader Basil - last Illness and death of Alexius)