271.

Exactly what you'd expect really: White's 6th move options, White's 7th move options, 9 Nd5 and 9 Bg5 are the sections, and within those coverage biased towards Black's point of view (ie some of Black's lesser options don't get covered but in principle White's do). Lots of homage to Rogozenko, and rather more explanation than him, all delivered in the exquisitely literate and lucid style we have come to expect from this author.

(oh and there's a bit on dealing with anti-Sveshnikovs; not 2 c3 and stuff but the move order tricks designed to get Black out of his pet system).