24″ x 26″ – Color
18″ x 24″ – Color
US Letter – Color and B&W
A4 – Color and B&W
You get 4 sizes supplied in PDF format. There’s a 24″ x 36″ poster size, and 18″ x 24″ poster size, plus US Letter and A4.
The A4 and the US Letter come in full-color, and black & white.
Print them at home, or print them through an online site like VistaPrint.