The Medieval Church · c. 1494
The Rosary of Spiritual Exercises
Rosetum Exercitiorum Spiritualium
Jan Mombaer · c. 1460–1501
What it is
A vast handbook of methodical meditation, with numbered steps, memory devices, and scales for examining conscience day by day.
Why it lasted
The most systematic expression of Devotio Moderna method, and a probable influence on the Ignatian Exercises a generation later.
Where to read it
This work is in the public domain and can be read in full, free, at the archives below. The Library catalogues it; it does not host the text.
These open a search on each archive rather than a direct link, which is the honest way to point at an edition nobody here has checked line by line.
Read next