As a sort of side note comparison of short vs long book blurbs, the book I'm reading now makes an curious example:
The Camel Club by David Baldacci.
On this Amazon
page here you will see a one (too large IMO) paragraph. If you use the "look inside" link it shows an old edition which happens to match the paperback I'm reading. Check out the back cover you'll see a 5 paragraph description! I'm halfway through and the third paragraph has just started happening, I haven't seen the fourth paragraph yet. This is seriously weird, those paragraphs are effectively spoilers built into the blurb (admittedly there is not much too surprising about the book, so they're not bad spoilers).
The lesson or moral that I take from this example is that it is not just Indies that sometimes get it wrong when writing blurbs.
