Ah, Thailand. It still draws the tourists, and for many good reasons. And Lonely Planet Thailand is still the standard by which other guides are measured. It's very good, maybe the best overall country guide -- and yet, a country guide may not be the best choice for YOUR trip. In this review, I'll talk about how this version is different from the previous version, and how this book differs from other guides by Lonely Planet and other publishers, to help you choose the one best for you.
THE NEW FORMAT
Lonely Planet Thailand (LPT in this review) in this new 2012 edition is getting the same facelift that others in the series have been getting recently. A new printing process allows the inclusion of color pictures - though not on glossy paper, so not as nice as in the LP Discover Thailand (see below) or the few glossy pages they had in earlier editions of LPT. The organization has been updated, sometimes improved, though sometimes it will take getting used to. But overall, it still has a wealth of information about the country as a whole suited to a serious wanderer who will be going off the beaten path and needs to bring a serious reference.
One thing I am not crazy about is that the table of contents has gone missing, mostly.
Suppose you want to find the section on hotels for Khao San Road (the famous backpacker area of Bankgok). You'll page through all the highlights pages, which are worthwhile for getting started, but not for the task at hand, until you get to page 52, which handily tells you that Bangkok starts on page 52, and not much else. Keep going, and on page 62 you'll find a table of contents for a section of Bangkok which is not Khao San Road, but does have a heading for "Sleeping". Keep turning pages, then figure out - they have gotten rid of a proper table of contents with the sections of Bangkok, so they must want me to use the Index!
So you go to the Index, find Bangkok, look for Sleeping - nothing there. Oh, in the index it's under Accommodation (no consistency with the table of contents). And that leads you to the pages you want. Lesson: get used to using the index instead! I liked the approach of the previous version better, but the change is only a half star off the rating.
WHY LPT IS POPULAR
If there is one thing every first-time traveler to Thailand (especially Bangkok) must read, it is the list of scams on page 144. It is a spot-on list, and I have experienced every one of them multiple times. Read it, or prepared to get taken-taken by a tuk-tuk (you're better off in a meter taxi). Actually, Thailand isn't that dangerous, aside from scams, but scams can take the glow off of an otherwise great trip.
And while this is an important topic, it is only one page within 814 of a book on advice on health, weather, getting around, eating, accommodations, history, cooking classes, all kinds of fun, temples, how to avoid being rude (which you can do without knowing it), and all of the essential information, all manner of practicalities.
Aside from such generalities, it has info on the oft-visited places - Bangkok, Chiang Mai, Ayutthaya, the beaches and islands, the national parks - but it is also a great reference for the lesser-known places all over the country for a serious, extended wander, whether the ancient Khmer temples near the disputed border of Northeastern Thailand (Isaan) and Cambodia, the heavily Lao-influenced places of northern Isaan, the southern peninsula with its spicy seafood curries, or the golden triangle area in the north which is also an up-and-coming area for oolong plantations run by the Chinese - this guide has all of this and a lot more, allowing you to make it up as you go along, and still make a lodging reservation in advance if that's your thing. Whether you're traveling the beaten tourist path or want to be the first farang people have seen in awhile, you'll get help on finding it here.
Basically, this one book has essentially everything you need to know for getting around Thailand, written and organized well by a team that has been doing this, and improving on it, for years. This edition also includes a color pull-out map of Bangkok.
I'm not saying that LPT is necessarily better than, say, Rough Guide or DK Guides - LP is the brand I am most familiar with, and it has never let me down, so it's often, but not always the one I prefer. A lot of information, in text form, which could be daunting to some. Therefore it may NOT be the one I would recommend to YOU, depending on your needs, because there might be a better one for your particular trip. Unless you plan to wander all over the entire country, this big book might be a bit overwhelming in terms of picking where to go.
To understand LPT better, it's worth comparing it to other members of the family.
Lonely Planet Discover Thailand (Full Color Country Travel Guide)
LPDT is on glossier paper, is thinner, has fewer pages, more white space, a lot less text and a lot more pictures of higher quality, and a lot less information on fewer places. So why would you want it? Because it is perfect for a first-time visitor to Thailand. The pictures are very helpful for picking out the kinds of places that YOU will enjoy visiting.
There aren't as many locations listed. For example, the less-visited provinces of Northeast Thailand collectively known as Issan (or Isaan or Isarn etc) aren't covered as much because they are less popular with first-timers. And there aren't as many pages for locations that ARE covered. But sometimes less information can make it easier to find what you're looking for, and LPDT may be perfect for that. Or you might use LPDT to figure out where you want to go, then decide to bring LPT with you to have all the information, and the flexibility to change your mind once you're there.
Note: There is a new edition for May 2012 which I have yet seen: Lonely Planet Discover Thailand (Country Guide)
Lonely Planet Bangkok (City Travel Guide)
If you're in Bangkok on business, or have a limited time in Thailand because you are hopping cities in the region, this book actually has more information about Bangkok than LPT - a LOT more. And it is a smaller book that is easier to carry around than the much larger LPT as well. It also has day trips that are reasonable around Bangkok, in case you want to get outside the city just a bit without a lot of travel.
By the way, there is also an even shorter guide to Bangkok here: Lonely Planet Bangkok Encounter
Lonely Planet Thailand's Islands and Beaches (Regional Guide)
I have not actually read this one much, not being a beach guy, but like the Bangkok City Guide, it focuses on the beaches and islands, thus has more info on those, and yet is a smaller book than LPT to carry around if this is the focus of your vacation.
EXAMPLES TO COMPARE THE GUIDES
For Bankgok and day trips around:
* LP Thailand 2012 (this book) has 100 pages
* Lonely Planet Bangkok (City Travel Guide) has 296 pages
* Lonely Planet Discover Thailand 2010 has 46 pages
Another example - Phitsanulok is not a primary place to visit, but one I enjoyed visiting. It is covered in both the Country Guide and Discover Thailand, and makes a good comparison. LPDT 2010 has fewer than 4 pages, part of which are used for pictures; it has 1 paragraph for 1 temple and a brief mention of a few other sights, lists 5 hotels and 6 places to eat, discusses only the city, and has no city map. LPT has 7 pages, no photos, a city overview map, presents 3 temples, tells you where to get a massage, lists 6 hotels and 9 places to eat or drink, and includes a discussion of places outside the city in the province.
The Phitsanulok example is typical of the difference of coverage all over the book - there are more listings in the Country Guide, and many more places are covered, especially in Isaan.
BOTTOM LINE
The LP Thailand Country Guide is best for someone going on an extended visit, or who is unsure of where they are going. It is popular with backpackers who make up their itinerary as they go along. It can be used for a first-time guide, though it might be a bit overwhelming in terms of the amount of information, including a lot of information about places you won't be visiting, and paper you'll carry around with that information.
The other guides contain the essentials you need and are worth considering, and sometimes more if they focus on a smaller area; still, you can never go wrong with this guide. Though I have focused on Lonely Planet in this review, the Rough Guide and DK guides are also good, and other brands I have not read are bound to have their merits as well.
The best option is to look at them all - at a book store, or at your local library - and make up your mind.
NOTE: I am an Amazon Vine reviewer. I have no affiliation with Lonely Planet and have never met any of its authors. In reviewing, I call them like I see them; I don't always like LP guides. I have been to Thailand more than a dozen times and been to many places in all parts. I know the country reasonably well, speak some Thai, and I have read most travel books about this country.