Well worth a read if you're thinking of writing a thesis. As with all these books, you might not agree with everything single point, and the author makes it clear that it is not a set of iron rules to be applied mechanically (e.g. I disagree that having your supervisor in your viva 'undermines your status as an independent professional'). There is, however, plenty of good advice, and I wish I'd had this to hand when writing my thesis.