Providenciales is generally easy to navigate. The most difficult points of interest to locate are some of the more remote beaches and a few of the natural attractions. There isn't any tourism signage, and little general directional signage.
There are free road maps available at Providenciales International Airport (PLS) and we highly recommend you pick one up. They're available in the baggage claim area. Also, it's common to receive a map when you rent a car.
Roads and traffic follow the UK Highway Code, which differs from driving regulations in the United States and Canada. We drive on the left, and roundabouts are frequently encountered on Providenciales. Poor drivers and speeders are commonly found on the roads here, and you are advised to maintain a greater distance than you would in other countries.