Prior to the 1930s, sleeper cabs in trucks, providing an area for drivers to rest, didn't exist. It wasn't until 1933 that Kenworth became the first manufacturer to offer an integrated sleeper section ...

There are approximately 3.5 million semi truck operators in the U.S., according to Truck Info. Regional drivers can be on the road for much of the week, while over-the-road (long-haul) routes can last ...

Passing a semi-truck on the highway, your eyes might be more drawn to the trailer on the back than the cab pulling it — especially if its plastered with pictures of snack cakes or images of fast food.