Mark Ryski

Mark Ryski is a recognized authority on store traffic and shopper conversion analytics. He is the Founder & CEO of HeadCount Corporation, a retail analytics firm he has led for more than twenty years, working with retailers across North America and in some 20 countries internationally.

A three-time author, his books include When Retail Customers Count, Conversion: The Last Great Retail Metric, and his latest, Store Traffic Is a Gift. Mark’s insights have been featured in leading business and retail publications, and he is a featured BrainTrust commentator on RetailWire. In 2025, he was named a RETHINK Retail Top Retail Expert.

Through his writing, speaking, and consulting, Mark helps retailers make sense of their data and turn every store visit into measurable results.