[Karmakosmik]

I suggest this review, published in Cell from 2014: "Transgenerational Epigenetic Inheritance: Myths and Mechanisms" http://www.sciencedirect.com/science/article/pii/S0092867414... (Open access)

and this series Kevin Mitchell: http://www.wiringthebrain.com/2013/01/the-trouble-with-epige... (The Trouble with Epigenetics)