Densely written and often seeming more like an expanded glossary, but that's the nature of the beast (unless you take a special kind of pleasure in 1000+ page Biology textbooks of course). Despite this, this is an impressive overview of the field, with enough food for thought each, say, 10 pages, to keep you going. Be prepared to understand only 30% of the total text (as was the case for me, 31.4% to be precise), but, like the author mentions, to get knowledge in Biology is like traversing a helix: with each round you grasp a bit more, in a bit more detail. Consider this round #1.