are references to source material and these are found in the back of the book if you want to learn more (which I do). Epigenetics is only just getting started and the author refers to conferences that occurred even as late as 2011. This is leading edge science. It is a fascinating book. Yes, it is a technically demanding book. But if you are keen to get a deeper understanding of the future of genetics then I highly recommend it. The promises of the widely hailed genomic revolution did not materialise.The mapping and sequencing of the human genome failed to set in motion great medical breakthroughs because it could only produce a map of the assembly software.It did't explain how it functioned with only 2% of the genome coding for proteins.The DNA blueprint is certainly a starting point but it isn't a sufficient explanation for the complexity of life.It is a script open to multiple interpretations rather than an unchanging mould. Epigenetics is the new discipline that is revolutionising biology.It has found in Nessa Carey a most engaging and lucid exponent.She writes in a clear non patronising manner using interesting and witty analogies to bring to life a lot of dry biochemical or genetic concepts.Barely a page passes without a new morsel of knowledge is offered with enthusiasm. Epigenetics describes the set of modifications to our genetic material that changes the ways the genes are switched on or off without altering the genome.Epigenetic modification doesn't change the sequence of a