Иоанн Лествичник
The illumination of manuscripts was another major genre of Byzantine art. The most commonly illustrated texts were religious, both scripture itself (particularly the Psalms) and devotional or theological texts (such as the "Ladder of Divine Ascent" of John Climacus or the homilies of Gregory of Nazianzus). Secular texts were also illuminated: important examples include the Alexander Romance and the history of John Skylitzes.