It's time to learn how to create directories. This involves the use of the mkdir command. Try the following:
/home/larry# mkdir foo
/home/larry# ls -F
Mail/
foo/
letters/
papers/
/home/larry# cd foo
/home/larry/foo# ls
/home/larry/foo#
Congrats! You've just made a new directory and moved into it. Since there aren't any files in this new directory, let's learn how to copy files from one place to another.