I've just added two versions of what used to be the Cambodia pack in the Travelfish Guide store.
The first is the Cambodia Highlights Pack which contains just the guides for Phnom Penh and Siem Riep and costs $7.95. You can read more about it here.
The second is the Cambodia Combination Pack which includes all of our Guides for Cambodia, namely: Phnom Penh, Siem reap, Sihanoukville, Kampot & Kep and Northeast Cambodia and costs $15.95. You can read more about it here.
We've split them up this was as we realise that a lot of visitors to Cambodia don't see more than Phnom Penh and Siem Reap so we thought a cutdown "pack" would better serve your needs.
Both packs are discounted -- at around 30% off, so if you're looking at buying a few guides, picking up a pack will save you a few bucks.
Of course you can just buy the individual titles if you prefer.