Scott Kelby writes books utterly rammed with irrelevant (smug, self satisfied) crap that still somehow manage to `cut the crap' when it comes to the job in hand. This series of books gets results where other books fail. It's just a question of whether you can handle the particular style.
Kelby is arrogant, but his arrogance works in his favour because his bullish style gets you places fast. It's like he's saying: "I know what you want to do, this is why you bought Lightroom, so here's how to do it: step 1, step2, step 3...." And then he follows that up with "I'm the best at Lightroom, this is how I do things and it's the best way, so ignore all the nuances and just look and learn: step 1, step 2, step 3..."
And it really works because despite the fact that the humour and style are grating, he's mostly right. I do - at this stage - want a book that says "do this, it'll work".
When I upgraded from Photoshop CS3 to CS5 I ditched the Kelby Photoshop book for the Martin Evening book.
When I've got my Lightroom project up and running and got all my photos imported, backed up, catalogued, key-worded and sorted in their shiny new system - which will take me no time at all because I'll be following Scott Kelby's recipes - I'll no doubt turn to Martin Evening again for a solid, well written, comprehensive, professional look at the development and outputting stages.
Ultimately, I do actually believe you'll need more than one book, but if you're a beginner then the sheer `get-things-done' practical usefulness of this book wins out over its ropey style.
This is the second Kelby book I've bought and despite my incessant need to moan about his style on the Amazon reviews section, I don't regret either purchase.