Somewhere, someone can't use your website. You may never hear from them. Most customers who run into an inaccessible website don't complain. They leave. The business sees nothing wrong, changes nothing, and the next customer leaves the same way. Who Can't Use This? is a practical guide for small and mid-sized businesses that want to break that silence and make digital accessibility part of how they work, so it lasts. Drawing on 16 years of publishing in newsrooms and New York State government, accessibility consultant Joe Gullo introduces the Accessible Business System: five steps any business can follow, whether you run your website alone, work in a small team, or lead a larger organization. - Ask who can't use your website, and what it's costing you. - Decide on one goal, clear roles, and a plan your team can start this week. - Default to accessible in your templates, tools, and vendors. - Show your team the difference, so they choose to join in. - Prove it works, by testing, listening to customers, and catching drift. Inside, you'll find the Quiet Loss Check, a simple method for estimating what an inaccessible website is costing you, along with templates, checklists, a glossary, a letter for your team, and code fixes for your developer. The book also includes original research on 600 Dutch webshops, which found that no trustmark checks whether customers can actually use a site, and that certified shops did no better than others. No jargon walls and no quick fixes that don't work. Just a plan your team can start this week, and keep going.