This book is filled with incredible information about the history of the Celtic-speaking peoples.
Unfortunately, this book is very poorly written and generally reads like a book edited by a strict grammarian with little sense of style. Additionally, the Y-DNA information is simply dumped into boxes on random pages with very little explanation after the initial occurrance in Chapter 1. As a basic introduction to Celtic history this book has some appeal and the author deserves credit for attempting to weave together massive amounts of genetic, archaeological, literary, and historical data. But the language used throughout the book makes it an irritating read.
Paragraphs often shift topics, voice, and style halfway through. A typical example is on page 148:
"Caesar's first action was to destroy the bridge across the Rhône at Geneva. The Romans have so often been credited with bringing a transport infrastructure to the Celtic lands that it needs to be said that a system of roads and bridges already existed in Gaul. Caesar encountered roads in Britain too. In Ireland, which was never engulfed by the Roman empire, the early medieval law texts made provisions for public roads. What Roman civil engineers achieved was a system of stone bridges and straight, metalled roads built to withstand heavybtraffic. Legions on the march could travel at speed along these imperial arteries."
The paragraph is supposed to describe Julius Caesar's conquest of Gaul, yet it jumps around geographically as well as chronologically and topically. The author is apparently distracted by the concept "road," and, instead of telling the reader more about Caesar's tactics against the Helvii, goes off an immediate tangents that have nothing to do with the conquest of Gaul.
This bizarre, meandering writing style pervades the entire book, which reads as if the author lacked logical thought patterns. I'm not sure if this is how the author intended to write, or if this is the result of poor editing (other books published by Thames & Hudson suffer from poor English as well).
I'm guessing that the simple grammar, short, choppy sentences, and nearly complete lack of embedded clause structure is on purpose. But this style makes the content harder, not easier, to read. If a first year university student in my academic writing class were to write in such a way, I would return the manuscript with instructions to stick to a single topic per paragraph, to use transitional phrases between paragraphs, and use many, many more gerunds and past participial phrases at the start of sentences.
It's a shame, but despite the valuable information on Celtic history, I cannot recommend this book.