How to shop OPTP Vol. 19:
  • Turn pages by clicking the bottom corner of the page or the arrow that appears when you hover on either side of the catalog.
  • To zoom in and out, use the arrows that appear in the upper right corner of the page.
  • To skip forward or backward, use the slider bar at the bottom of the screen.
  • To learn more about or purchase a product, simply click on the product.