sure, if can remember any of the specifics. The Turk/Turkey bit will help, I'll probably be able to remember that. If I can remember that Kazak- is the largest, maybe I can remember that the other K- one is to it's southeast? They do seem to go in order alphabetically if you go clockwise in a circle starting at the top.
Maybe it would help if I knew the politics and/or cultures of these places, but my ignorance is probably on par with most Americans (maybe a little higher 'cause I at least know they exist 
).
The predominant culture is Turkic. Turkmen and Turkish are closely related languages, as are Kazahk and Kyrgyz (the latter two are sometimes considered one language). Uzbek is related to the Uyghur language. Tajiki is a dialect of Persian, and is the only non-Turkic culture/language/people.
If you have any actual interest in Central Asian cultures, I’d recommend:
Civil Society in Central Asia by Waugh, Daniel
Central Asia in World History by Golden, Peter
And anything by Edward Allworth, one of the best scholars on the subject.
(I doubt you were *that* interested in learning more about it, but I already typed this out. No reason not to post it!)
