Modern Hagiography
Lives of the Saints by Sabine Baring-Gould.
Miniature Lives Of The Saints For Every Day In The Year by Henry Sebastian Bowden.
Legends of the Blessed Sacrament Gathered from the History of the Church and the Lives of the Saints by Emily Mary Shapcote.
Eucharistic Lilies: Youthful Lovers of Jesus in the Blessed Sacrament by Helen Maery.
True Stories for First Communicants (audiobook)
Fabiola or the Church of the Catacombs by Cardinal Nicholas Wiseman (audiobook, historical fiction).
Medieval Hagiography
Art & Architecture
19C Sculpture (another here)
A Guide to Christian Iconography: Images, Symbols, and Texts
Nihil sub sole novum 