A few years ago, your only gift choices for your geeky friends and family were men's and women's T-shirts, but that's all in the past.
Geek culture has become mainstream.
"I would say that during the last five years, the geek chic business has grown tremendously," Ed Labay, vice president of merchandising at Hot Topic, told CNBC. "So many people and companies are trying to find their way into it."
Brands are no longer peddling T-shirts and action figures. Companies have adapted to serve customers in a wide variety of categories, including apparel, housewares, toys and health and beauty.
From "Game of Thrones" to "Star Wars" and "The Walking Dead" to "Halo," today's geek is more diverse than ever.
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Here's a look at some of the hottest geek gifts to hit shelves for the 2016 holiday season: