Nick Offerman is an award-winning actor, comedian and founder of an artisanal woodshop, but from the way he talks, he owes a great deal of that success to his wife, Megan Mullally. 

"Megan is the most talented person I've ever met," said Offerman, on-stage at the annual Book Expo in New York City on Friday, of the award-winning actress and comedian. "But the most important thing I learned was when we first started living together, watching how hard she worked and what a perfectionist she is and how much care, responsibility and respect she gave to her audience through her every gestures," he added.

The pair appeared at the annual publishing trade show, which gathered thousands of writers, editors, publishers and other literature nerds in Manhattan's West Side, to promote their new book, The Greatest Love Story Every Told: An Oral History (Dutton, 2018.) Hitting shelves later this year, the 'tome,' as Offerman calls it, chronicles the couple's fiery relationship--both professional and personal--that has spanned the course of nearly two decades, and continues to captivate fans on social media and beyond.

You might think that for Offerman, who runs a small business making artisanal wood products near his home in Los Angeles, everything comes easy. But in a conversation last year at CES, he revealed the great challenges that he's faced as a business owner: "There's a lot of hard work besides just having fun," he told Entrepreneur. "If our business were to take off by say, offering an Offerman line of furniture, that's not something you can make in a shop in an artisanal fashion." 

The work ethic he's learned from Mullally has proven critical, it seems, in maintaining the quality of his products over time. To this day, Offerman Woodshop employs just 10 people--the actor included--who meticulously craft everything from chairs to beds and moustache combs.

"Great artists are great because they make what they do look so easy, but that requires a great deal of tenacious work," added Offerman at Book Expo. "It's human nature to get things just to 'good enough.' A great lesson I continue to learn from Megan is to make things as good as you can up until you have to turn them in."