300 original exam-style questions, each with the reason behind the right answer, so you can test yourself on every module and see where you still mix things up.

A boiler room tour in one-page sketches: what each valve, gauge and control does and how to make your rounds, so the exam questions match what you see on the job.

A day-by-day plan for the last week before the exam plus one-page review sheets of the key topics, so you know exactly what to go over and in what order.