In 2013, trucking transported nearly 15 billion tons of cargo. The Bureau of Labor Statistics reports that by 2040, that number is expected to increase to 18.79 billion tons. Clearly, the trucking industry is in higher demand than ever, and while jobs are readily available, the first step is attending truck driving school. After taking classes, you’ll have to pass a truck driver test, which can prove to be difficult. If you’re taking CDL classes and preparing for your truck driving exam, these study tips can help you retain the info you need to get licensed and hit the road.