Czech, Polish, Slovak - Are These West Slavic Languages Pretty Much the Same?

The Slavic languages constitute a large group of related languages found mostly in Eastern Europe, the Balkans, and Russia. To further distinguish this diverse group, the Slavic languages are divided into three subgroups – East, West, and South Slavic. Czech, Polish, and Slovak are all members of the West Slavic group – a bunch of very closely related languages. Much like the Scandinavian languages, they have had a long history of developing together and influencing each other.