The 2018 E-Stats provides estimates of e-commerce activity in key sectors of the U.S. economy for 2018, revises previously released estimates for 2017 and earlier, and places these estimates in historical context. Underlying data are collected in separate surveys of manufacturing, wholesale, service, and retail businesses. Data tables for each sector can be found at <www.census.gov/programs-surveys/e-stats/data/tables.html>.