Modern Hagiography
Lives of the Saints by Alban Butler.
Lives of the Saints by Francis Weninger.
Lives of the Saints by Sabine Baring-Gould.
The Liturgical Year by Dom Guéranger.
Our Birthday Bouquet Culled from the Shrines of the Saints and the Gardens of the Poets by Eleanor C. Donnelly.
Pictorial Half Hours with the Saints by Auguste François Lecanu.
Stories of the Saints for Children: The Black Letter Saints by Mrs. Molesworth.
Anecdotes and Incidents: Ecclesiastical and Religious
Goffine’s Devout Instructions on the Epistles and Gospels for the Sundays and Holydays
Short Instructive Sketches from the Lives of the Saints
The Lives of Saints, with Other Feasts of the Year, According to the Roman Calendar by Peter Ribadeneira.
“The Legend of the Cross” by Sabine Baring-Gould.
Medieval Hagiography
Socrates, Ecclesiastical History (pdf)
Theodoret, Ecclesiastical History (pdf)
The Golden Legend (and illustrations)
Breviarium Romanum – Latin & English.
Art & Architecture
The painted fresco cycle by Piero della Francesca in the basilica of San Francesco in Arezzo – about, photographs, 3D model, photo
The church of Santa Croce in Gerusalemme in Rome
18C Invention of the True Cross
Warburg Institute Iconographic Database
A Garner of Saints: Being a Collection of the Legends and Emblems Usually Represented in Art by Allen Hinds.
See also 18 August – Saint Helena (when available).
Music
Customs & Devotions
Heortology: A History Of The Christian Festivals From Their Origin To The Present Day by Heinrich Kellner.
Meditations for the Use of the Secular Clergy by Pierre Chaignon.
Manna for the Soul: Meditations for Every Day of the Year by Paulo Segneri.
Meditations for All the Days of the Year by M. Hamon.