If your looking at this book im sure your aware its old, making the language quite difficult to follow unless you are fully awake and alert. I found parts hard to understand, not the ideas themselves but the way they are put forward, due to the era in which it was written. This is however one of the most exciting aspects of the book (the era it was written).
Once i got used to the fact that this was no "evolution for dummies" type book i began to find something i really enjoyed, it actually felt like Darwin was trying to convince me of his ideas, constantly giving arguments and counter-arguments, and going into great detail to prove his point. And he knows loads about pidgeons and bees.
I like to think i have a reasonable understanding of evolution and this book kept giving more to think about, it really was fascinating to read considering that this work literally started the entire idea. It goes really well with A-level biology and leaves you with plenty yo think about, im pretty tired now and am slightly aware of how this review does very little to explain why i loved this book so much.
Anyways for £3 you should buy it, it will make your life/thoughts better, that is all.