Wandering around Amazon site after receiving a valuable advice from 
birdwatcher, I found a few titles following the patterns like "<World Religion> for Dummies" or "The Complete Idiot's Guide to Understanding <Major Spiritual Tradition>". They've got "Buddhism/Islam/Judaism for Dummies", together with my absolute favorite, "The Complete Idiot's Guide To Jewish Spirituality & Mysticism". Another funny thing is that the book "Christianity for Dummies" has been written by certain Richard Wagner.
Still, "Isichasm for Dummies" is not yet available.
P.S. The Complete Idiot's Guide to Zen Living (Complete Idiot's Guides (Lifestyle))
