Alberta Class 1–4 study guide and books
Start with the free official guide — it is what the test is written from. Books only help if you want printed practice or a structured course.
- 2 official
Free
Official guide
Commercial Driver's Guide: trucks, buses, emergency responders, and taxis (Government of Alberta)
Alberta Transportation and Economic Corridors · Free PDF (Open Government Licence – Alberta)
The guide the Class 1 to 4 knowledge tests are based on (Spring 2023). Read chapters 1 to 3 and 9 to 11 for every class, then chapter 4 for Class 1, chapter 5 for buses, chapter 6 for heavy trucks and chapters 7 and 8 for taxis and ambulances. Every question on this site cites a page of it.
Driver's Guide: cars and light trucks (Government of Alberta)
Alberta Transportation and Economic Corridors · Free PDF
The companion guide the commercial guide says to use with it: signs, signals and the rules of the road that commercial tests also draw on. Useful if your Class 5 knowledge is rusty.