Modern Hagiography
Lives of the Saints by Alban Butler.
The Liturgical Year by Dom Guéranger.
Medieval Hagiography
Art
Warburg Institute Iconographic Database
A Guide to Christian Iconography: Images, Symbols, and Texts
Post-Biblical Saints Art Index
Legends of the Monastic Orders as Represented in the Fine Arts by Mrs. Jameson.
A Handbook of Christian Symbols and Stories of the Saints as Illustrated in Art by Clara Erskine Clement.
The Saints in Art with Their Attributes and Symbols, Alphabetically Arranged by Margaret E. Tabor.
Saints and their Symbols: A Companion in the Churches and Picture Galleries of Europe by E. A. Greene.
The Saints in Art by Joseph Maria von Radowitz.
Emblems of Saints by Which They Are Distinguished in Works of Art by F. C. Husenbeth.
Nihil sub sole novum 