This is a magnificent achievement, both as book and as structure: the man can write, but the man can also bring together different strands, different angles almost effortlessly. Impressive indeed.
He handles a great wealth of material with real skill, while always conceptualising and asking questions beyond the immediate scope of the text.
I liked it more than (the yet excellent) Age of Wonder, and slightly less than Dr.Savage and Mr. Johnson: perhaps because I'm more interested in Johnson than in Shelley and the Romantics?
But as in these other works, Holmes himself is not interested in writing a straight biography; rather, he's trying to understand what a biography is, how it comes to be, and therefore, how we can come to know a man's (or a woman's) life, if at all.
How much of the biographer - the observer - is in the description of the one written about? Is objective understanding impossible? And would an obective understanding be any more real?
Being a Frenchman, the parts on Mary Wollnstonecraft and De Nerval were particularly interesting, but it's also because (and it's a minor 'but') the Shelley part I found a little bit repetitive, a little bit less focused - a little bit less intense, perhaps.
But it really is a wonderful book, an there's no need to be interested in biography as such, or even in those people Holmes writes about, to become absorbed in it. And in any case, it's certainly fascinating as a study on writing, on being a writer, and on the power of words and Literature.