There are 2 travel guides dedicated to Kyrgyzstan: Odyssey and Bradt. They are both excellent, but take a slightly different approach.
Bradt travel guide to Kyrgyzstan
A very complete offering from Bradt. It’s a Lonely Planet-type book, full of useful practical information to help the traveller once he is on the ground. Tiny hamlets are covered, and there is lots of information for the independent hiker. As an inspirational trip planning guidebook, the Odyssey is much better, but in terms of up-to-date practical travel intelligence, no book will get you through Kyrgyzstan better. Updated in 2015.
Odyssey travel guide to Kyrgyzstan
The Odyssey guidebook is bigger and heavier than Bradt. That’s really its main downside. It features all the practical info you need, although they are not outlined in a matter-of-fact way like the Bradt. It’s more descriptive, more storytelling, and features much more background on Kyrgyzstan.
Where the Bradt guide offers more practical information at a glance, this guide is more readable. Also offers lots of inspiring pictures and trekking routes. Last update in 2008, so don’t expect to find the latest hip bars of Bishkek listed here.
Find a quick overview of the best guidebooks for travel on the Silk Road on the overview page.