If you are interested in Afghanistan, you will have encountered Major Raverty, in part because his dictionary has not been superseded in English (I think it's available on this site).

For some reason, it seems that the grammar has not been posted here. In recent years, it's been reprinted a lot (I wonder why?), but in bastardized editions, without the copious poetry examples which illustrate the grammatical points.

The man on the image is not Raverty, but rather Khushal Khan Khattak, a poet and warrior especially revered by Pashtuns. Maybe I will post his poetry as well in days to come.