I wasn't sure what I was expecting from this book - maybe another conspiracy theory, expounding the truth, type book. But it's not - it's a series of essays about writers who have written about the grail.
Whether a pagan or Celtic sacred symbol, or a Christian religious relic, writers of both fact and fiction have been fascinated by the legends. From the earliest known poets who wrote down verbal legends already very old, right through to the more modern era, this book covers all of their work.
To be honest, some essays were more successful than others. I enjoyed many of them, but some were either too dismissive of their subject matter or couched in such esoteric language that they became not worth the hassle to decode. But in the main, I learned a lot and enjoyed the experience.