Serving as a volunteer with Garibaldi in his 1860 conquest of the Kingdom of the Two Sicilies, Du Camp recounted his experiences in Expédition des deux Siciles (1861).

He was elected a member of the Académie française in 1880, mainly, it is said, on account of his history of the Commune, published under the title of Les Convulsions de Paris (1878–1880).

Du Camp was an early amateur photographer who learned the craft from Gustave Le Gray shortly prior to departing on his 1849–1859 trip to Egypt.

Works on travel: Works of art criticism: Novels: Literary studies: Du Camp authored a valuable 6-volume book on the daily life of Paris, Paris, ses organes, ses fonctions, sa vie dans la seconde moitié du XIXe siècle (1869–1875).

His Souvenirs littéraires (2 vols., 1882–1883)[9] contain much information about contemporary writers, especially Gustave Flaubert, of whom Du Camp was an early and intimate friend.