There are two types of people in the food industry. There are the folks who work in the industry and there are the folks who live in the industry.

You know the sorts of people in that second group. They work all day in some food-related job. Then they go home and turn on the Food Network. And then they cook, because cooking is their hobby.

And when it's time for them to relax, they open a book about, you guessed it, food.

Here are some of the books those folks will be reading in 2015:

'Food: A Love Story'

Jim Gaffigan, a stand-up comedian, hit the big time in publishing when his comic memoir "Dad is Fat" became a best-seller in 2013. Gaffigan is back again with a sort of follow-up to that hit, titled "Food: A Love Story."

If the reviews are to be believed, the new book isn't quite as memorable as the first. Perhaps that's because book two, like book one, is based largely upon his stand-up routine. But as anyone in the food business can tell you, good sales numbers are always more important than good reviews. And "Food: A Love Story," which was published in late October, is already on the New York Times best-seller list.

'Grain Brain'

The anti-bread treatise was published in late 2013, and began a long, slow climb in sales. But climb they did. Something about the theories of Dr. Perlmutter, a neurologist who argues that carbohydrate consumption leads to a slew of neurological disorders such as, dementia, ADHD, and depression, hit a chord with consumers.

As word of the book spread through social media, Grain Brain became a must-read among a number of demographic groups, including the gluten intolerant and those who suffer from neurological disorders. The book is now the top-selling book about food on Amazon.

'American Catch: The Fight for Our Local Seafood'

Author Paul Greenberg first caught our eye in 2010 with his "Four Fish, The Future of the Last Wild Food," the winner of the James Beard Award. Greenberg's latest book returns to the world of seafood, this time focusing on the loss of local seafood in the American diet.

"American Catch" is climbing the best-seller lists, and that shouldn't come as a surprise. The book hits upon three of the more interesting cultural phenomena of today: environmentalism, global trade, and localvore food.

'Food Truck Road Trip - A Cookbook: More Than 100 Recipes Collected from the Best Street Food Vendors Coast to Coast'

No list of food books would be complete without at least one collection of mouth-watering recipes. And this year that book must be "Food Truck Road Trip," which gives the secrets behind some of the most innovative foods in the hottest space in food retail.

The book is written by Kim Pham and Phil Shen, the folks responsible for BehindtheFoodCarts.com, a guide on the Web to the wonders of the street-food world. More importantly, the book reads like a sort of adventure/travel guide combined with a sort of DIY/entrepreneur manifesto - reinforcing those most American of American dreams: taking a road trip and owning a small business.

'The Food Babe Way: Break Free from the Hidden Toxins in Your Food and Lose Weight, Look Years Younger, and Get Healthy in Just 21 Days!'

Say what you want about Vani Hari, the food activist known as the Food Babe. There's no getting around the fact that she has become one of the more influential people in the food industry, capable of mustering her "Food Babe Army" to force restaurant chains to stop using some types of bread, prompt brewers to disclose ingredients, and get a leading milk company to ban carrageenan.

And in February, Hari will become an author for the first time. If you just can't wait - and presumably the thousands of Food Baby Army soldiers cannot - you can preorder. 

For a look at last year's list of recommended reads for food pros, check out "8 new books that food industry professionals need to know about."