Tri-Fold brochures are a great marketing tool. They sit on the counter, serve as a small, portable and inexpensive way to market your services. More than a business card, they give you ample space to talk about the features and benefits of your products and services.
Many people go to a website to get information about your services and having a downloadable version of your brochure can be a way for people to take information away, much like they would the hard copy from the counter. The problem is, when tri-fold brochures are provided electronically, they're great for printing, but pose significant accessibility problems. Even when they're created in a manner that can be read and navigated by someone using assistive technology, the reading order is wrong.
Think about holding a brochure. You're holding it looking at the cover, open it right to left to reveal the inside. To the left is the back of the cover and there's a flap on the right. As you open that flap on the right to see the three panel spread, the core of the brochure, the cover and the right flap are now the back of the document.
Now, look at the picture below. For a typical brochure folded like it's described above, when it's printed, the "back" of the document would be page 1 and the inside of the document, page 2. I've marked the order in which you'd read the panels.
However, if you're an assistive technology user who is not seeing this document, but hearing it. You're being presented information in an order that doesn't make sense. Instead of starting on the cover, you're hearing the second page, then the back of the brochure, then the cover. After that you get pages three, four and 5.
The Commission on Rehabilitation Counselor Certification offers two versions of their brochure which explains what a Certified Rehabilitation Counselor is and does. In the screen capture below, you'll see that they offer links to the tri-fold CRC brochure and the full page CRC brochure, and have a single description for them.
CRC Resources page.
It's a simple and effective way to ensure that everyone can get your information in a clear, understandable, and accessible manner.
Brochure images adapted from Print-Print.co.uk blog