Anyone producing a Language Hacking Guide review (by Benny Lewis) is likely to recommend it for a great number of reasons. The work will improve the learning abilities of anyone with a little bit of time, and will fine tune the abilities of those who already have some background in learning a second tongue.
The English language is accepted as the universal language all over the world and by improving your English can significantly help to put you in touch with more people than any other language. However, due to all the various nuisances within the language, it can also prove to be a very difficult language to master. There are some very simple but cleaver ways that can really help you to improve on your spoken English that will most likely surprise you.
