John Climacus, Abbot
- Biography, with some quotes from his writings.
- http://www.saintpatrickdc.org/ss/0330.htm#john

Our Righteous Father John of Sinai, author of "The Ladder of Divine Ascent"
- Short overview of the life of St. John Climacus and his importance in the Orthodox Church.
- http://home.it.net.au/~jgrapsas/pages/climacus.htm

The Ecole Glossary: John Climacus
- Short biography, by Karen Rae Keck.
- http://www2.evansville.edu/ecoleweb/glossary/climacus.html

St. John Climacus, Abbot
- From Alban Butler's Lives of the Saints.
- http://www.ewtn.com/library/MARY/CLIMACUS.htm

St. John Climacus
- Sometimes called Scholasticus or the Sinaita. Article in the Catholic Encyclopedia on the sixth-century Syrian abbot of Mt. Sinai. He is called "Climacus" because he wrote the spiritual classic "The Ladder of Divine Ascent," "Kli
- http://www.newadvent.org/cathen/08457a.htm