Eli Pariser, native son and former executive director and current board president of MoveOn.org, will share his new eye-opening book “The Filter Bubble: What the Internet is Hiding from You” Wednesday, July 20 at 6:30 p.m. at the Owl & Turtle Bookshop, 32 Washington St. in the Knox Mill complex.

Pariser is very concerned about the hidden rise of personalization on the Internet. Google customizes its search results for each user. Facebook, the primary news source for an increasing number of Americans, prioritizes the links it believes will appeal to user. Behind the scenes, a burgeoning industry of data companies is tracking our personal information to sell to advertisers.

In his groundbreaking investigation of the new hidden Web, Pariser uncovers how this growing trend threatens to control how we consume and share information as a society — and reveals what we can do about it. Though the phenomenon has gone largely undetected until now, personalized filters are sweeping the Web, creating individual universes of information for each of us.

Pariser has written op-eds for The Washington Post and The Wall Street Journal and has appeared on “The Colbert Report,” “Good Morning America,” “Fresh Air” and “World News Tonight.”

VillageSoup Art/Entertainment Editor Dagney Ernest can be reached at 207-594-4401 or by email to dernest@villagesoup.com.