Google PLAY is Google's official store for Android smartphones and tablets. From here Google distributes films, music, books, but mostly: apps.
Its very cleanly designed interface makes browsing among each of its categories an easy and seamless experience. If you're looking for books, a quick tap on the 'books' icon comes up with a number of titles, or if what you're looking for is some music, a quick tap to 'music' gets you a whole list of albums. Once you log on, you can filter your search results according to genre, top downloads, top rated games etc.
Regardless, while Google PLAY is an excellent ally for those of you who want to download movies or music, it is particularly useful for anyone who wants to download Android apps. You'll find an overwhelming app repository with a special emphasis on games.
Many of the Google PLAY apps, such as some of the most groundbreaking games, or most prestigious applications, are, of course, paid-for, but there are also many interesting games and applications that are available completely for free.
Google PLAY Store is the ultimate store for Android. The old 'Android Market' has managed to reinvent itself to create one of the best places imaginable to download and purchase apps, movies, books, music and all kinds of material for your Android smartphone.