Epigenetics refers to heritable patterns of gene expression which do not depend on alterations of genomic DNA sequence. This book provides a state-of-the-art account of a few selected hot spots by scientists at the edge in this extremely active field. It puts special emphasis on two main streams of research. One is the role of post-translational modifications of proteins, mostly histones, on chromatin structure and accessibility. The other one deals with parental genomic imprinting, a process which allows to express a few selected genes from only one of the parental allele while extinguishing the other.
I liked it a lot, it's not only detailed, but it's referenced with the studies of the facts as well. Most of textbooks throw facts at you and final conclusions, I liked that this book contains basically the studies related to genetics and chromatin with further explanation.