Gilt, an ecommerce giant with over 1,000 employees, is hosting a free CartoDB class in their Manhattan offices on June 4th from 5-9 PM, offering hands-on training and expert insights into creating interactive maps, publishing online maps, and integrating dynamic external data. The event includes dinner and is open to Gilt technologists and anyone interested in learning about CartoDB. To maximize the experience, attendees are encouraged to sign up for a free CartoDB account beforehand, which will provide them with a head start on exploring mapping possibilities.