I also went to IITR, and would recommend their school. The best source of information (in my opinion) for them would be their website.
IITR Truck Driving School | Oregon, Washington, Idaho | Truck Driving Schools | CDL Training
Keep in mind that the school will teach your friend how to operate the truck to obtain a license and get employed. The next six months after school will be spent applying that training to the job day to day till they feel more comfortable and gain confidence. Good luck.