To emphasize one more time that - and why - it is useful and important to to know where the
emphasis added in Russian falls. And how that knowledge helps you, in both the spelling of the word
крокодил (crocodile) and the pronunciation of names such as Tolstoy.
It looks like two letters but has an indescribable sound. The 29th letter of the Russian alphabet is quite unique and often causes problems with pronunciation. We are talking about the letter ы, a sound not found in many other languages (except perhaps Turkish). As such, it takes some effort to pronounce it correctly.
There are many reasons to (want to, start, or continue) learning Russian. It’s the language of the world’s largest country, the biggest language in Europe, and it’s useful in many countries outside of Russia too. And perhaps the best reason to learn Russian: simply the most beautiful language of all.