Center for Civic Design and usable elections
Thanks to Aaron Stienstra for linking me to the Center for Civic Design, an effort to bring good design to elections and ballots. They are a non-profit who take information design, usability, and plain language to the cause of making election materials easier to comprehend and ballots easier to use.
The Center publishes Field Guides for creating well-designed elections, and projects that explore new technology initiatives, roadmaps, and toolkits.
These are open resources for government officials to evaluate how they conduct elections, how to write information better, how to lay out ballots and informational materials in more understandable ways, and how to support those with low literacy and other constraints.
Source: Center for Civic Design
For example, check out their site Election Tools — that is full of materials to make user-friendly voting experiences.