It can be tough to grow a service business. Clients are typically buying your expertise, and if all you have to sell is time, the size of your business will always be limited by the number of hours in your day.

One way to scale up your service business is to launch a training division to teach others what you know. That’s what Nancy Duarte did when she found herself run ragged trying to grow Duarte, a Mountain View, California-based design studio.

Duarte’s specialty was creating high-impact presentations (her firm created the slides Al Gore used in the movie The Inconvenient Truth), but the work was tough to scale. She found herself spinning various plates and hoping none of them would fall to the ground. Finally, she realized she was exhausted and no longer enjoying her job. She still loved the business but hated the constant demands on her time and energy.

In an effort to pull herself out of individual projects, she sat down and documented her methodology and from there created an internal training course so her employees could learn the Duarte way of creating presentations.

Once she had taught her own staff to handle the development of the presentations, she turned her philosophy and her approach into a book that was published in 2008 under the title Slide:ology – The art and science of creating great presentations. Her most recent book, Resonate: Present visual stories that transform audiences, was published in 2010. Having created a platform with the books, Nancy launched her training division, which offers corporate on-site workshops—her facilitators go to large companies to teach the employees how to make better presentations.

Due in large part to the training division, Duarte has scaled up her service business to the point where she now employs 82 people.

As business owners, we all know we should be documenting our systems for others to follow, but somehow writing our owner’s manual always takes a backseat to serving the next customer or fighting the next fire. Maybe what we need to do is stop thinking of writing down our process as an internal chore and instead focus on launching a training division. That way, the job of documenting our system goes from a textbook-boring task to the raw material needed to launch a revenue-generating business division.