For those of you who are not familiar with the word 'stickler' , it means a pedantic person who wants things to be right. For example, you could say, "He is a stickler for punctuality." The 'stickler' is very useful, perhaps even essential, when it comes to langauge learning. So, what is a 'stickler' and how might they help you to learn a language? Well, one of the best ways of learning a language is just to get on with using it. You can compose sentences, expressing whatever is on your mind in your foreign language. You could even compose a whole article or talk. And then send that text or speech to someone who knows the language, preferably a native speaker, and who is willing to correct your mistakes. This is your 'stickler'. What happens next is that your 'stickler' corrects what you are saying. If there are mistakes, they can point them out. If there are oddities, they can tell you how to say it differently. Often slightly...