The Glenstal Book of Icons presents meditations and prayers on a selection of icons from the Glenstal Abbey Icon Chapel. The process is that of lectio divina, where the icon itself is the text to be read and considered, leading to a meditation on the text - or icon - which in turn leads to prayer. Each icon is reproduced in full color.

A substantial introduction places the icon in its context in Eastern Christianity, looks at the theology of icons and then at the Eastern approach to praying with icons. Special emphasis is given to The Jesus Prayer which is then used in various forms throughout the meditations which follow.