Rublev's Trinity

Rublev's Trinity is of course the most well known icon in the world. And it has been nicely studied in a book published a few years ago, and just recently released electronically for those who have an Amazon Kindle: Gabriel Bunge, The Rublev Trinity, trans. Andrew Louth (St. Vladimir's Seminary Press, 2012).

About this book the publisher tells us:

Many art historians and scholars have described the sublime icon of the Holy Trinity by St Andrei Rublev, but nothing equals this detailed and comprehensive theological explanation by Benedectine monk Gabriel Bunge. In this inspired and utterly sober work, Fr Gabriel aims to make the icon's timeless message accessible to the contemporary praying believer.
The author understands precisely that Russian iconographic art, much more than the Romanesque and Gothic sacred art of the West, represents a theological confession of faith. Icon painters were conscious of this responsibility, and the monk-painters who learned their Orthodox faith through the prayer of the Hours and the Divine Liturgy, through the familiar texts of the hymns and the Gospel readings, reflected the revelation of God in their art. Fr Gabriel, completely attuned to this method of inspiration, upholds the palladium - the sign and meaning of Holy Russia - in this work, and reverently expounds upon the awesome utterance by Pavel Florensky: "There exists the icon of the Trinity by St Andrei Rublev; therefore, God exists."