It's not a matter of SHOULD I train my dog; it's a matter of HOW do I go about doing it in a such a way that I maximize the results and minimize the cost. No one wants a dog that that barks excessively, acts aggressively, jumps up on people, chews the house to bits, or has any sort of behavior or obedience issue that simply makes you worry about taking your pet out in public.
Dog obedience classes come highly recommended for many reasons. They not only allow you to have face-to-face instruction with a qualified dog training expert, they also allow your dog to be around and interact with other dogs in the class. But they also tend to come with a high cost, and you can't always be sure of what kind of instruction you will get. Personal dog trainers are obviously a great idea too, but not everyone can afford to call Cesar Millan and get a obedience regime tailored to their specific dog.
For the industrious reader, there are plenty of books available that outline established training methods, and any new dog owner should do their part in reading up a little on the pleasure and pain of dog ownership. But there is also a growing trend whereby dog owners can get the information they need delivered directly to them in the form of ebooks they can download easily and instantly via the Internet. One of the additional advantages of online guides is that many of the better ones offer an email consultation included with the purchase of their ebook, which can help an owner with a specific issue address it with expertise that is targeted and personalized.
Because ebooks do not incur the same costs associated with print publication, they are often offered at a comparably lower cost to the consumer. In addition, reputable ebook publishers will always use a certified third party payment processor to handle the transaction, which means any exchange is secure and fully guaranteed. It does, however, take some extra work on the "surfer's" part to sort out the quality resources from the no so quality ones, and this is one inevitable consequence of a medium whereby anyone can publish a website. The reality is that some products are a total steal and others are a total rip-off.
There are, however, a few guidelines to help you in this regard. You can read reviews of dog obedience resources offered online, and you can read online forums as well. These will give you a solid idea of where the product sits in the market in terms of its popularity and effectiveness. Also, you should ask other dog owners what resources they may have used online, and what they found to work. Seek out information and advice that is unique to your situation. After all, the whole point of a globally searchable database is that you can find the information you need. A resource on dealing with aggression in large breeds will not be of much use to an owner who wants to deal with excessively barking Terrier. Lastly, recognized and established vendors will ALWAYS have a full money back guarantee for a limited time, as they can be confident enough in their products to be able to offer it.