Khat (catha edulis) is a psychoactive shrub whose tender leaves and twigs have been chewed in the Horn of Africa and the Arabian Peninsula for their euphonizing effects for a millennium. 

The Journal of Oromo Studies (JOS) is a leading scholarly publication of the Oromo Studies Association (OSA). Issued twice a year, the journal publishes articles pertaining to all areas of Oromo Studies past, present and future, including topics related to the...