LEWISTON — The Androscoggin County Chamber of Commerce will host a seminar titled Grow Your Customer Base and Increase Sales with a Marketing Funnel on July 29.

It will be held from 8 to 10 a.m. at the chamber, 415 Lisbon St.

Presented by Ebb Walton, online marketing specialist at Nancy Marshall Communications, the seminar will cover taking a holistic approach to marketing by guiding prospects through a multi-stage funnel.

Cost to attend is $25 for members, $50 for nonmembers. Visit www.androscoggincounty.com or call 783-2249 to register.