Lives of the Saints by Alban Butler.
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.
Miniature Lives Of The Saints For Every Day In The Year by Henry Sebastian Bowden.
Long form biography, but from which chapters may be easily selected.
Art & Architecture
17C Ecstasy of Saint Mary Magdalene de’Pazzi (scroll down)
Legends of the Monastic Orders as Represented in the Fine Arts by Mrs. Jameson.
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.
Customs & Devotions
Manna for the Soul: Meditations for Every Day of the Year by Paulo Segneri.