They carefully studied and recorded the employees" actions, and created new ideas for them to work with less stress and energy, but at the same time, produce better results. Together they published three books on their studies; Motion Study, Fatigue Study, and Applied Motion Study (Encyclopedia Britannica 2003). These studies helped many businesses learn about the development of their employees; how the employees lacked performance wise, along with whether or not the employees were overworked. The same methods of time management and order used for their clients, such as GE and Johnson and Johnson, coincided with the methods used at the Gilbreth home (Graham 633). .
As if raising twelve children were not difficult enough, Frank and Lillian raised their children and ran their consulting company simultaneously. Along with home and work, Lillian also went to school to obtain her doctorate in Psychology (Graham 634). Lillian believed that any wife could perform both at home and with a career and believed in finding happiness in one's work, whether at home, outside of the home, or both. "The woman who likes her job of homemaking, who does it with skill and zest, whose home is well managed and whose family is contented, is a happy woman" (Gilbreth 1). Lillian and Frank found that their method of motion tactics worked well with their children, and they created checklists and schedules for each family member; they were very well organized. In their family, they had a family purchasing committee, utilities committee, projects committee, and a council; these committees brought results in an orderly fashion (Gilbreth and Gilbreth Carey 43). Later in life, two of their children wrote two comical books about their experiences at home. These books titled, Cheaper by the Dozen and Belles on Their Toes eventually became motion pictures (Graham 633). .
When Lillian's husband, Frank, died of a heart attack in 1924, Lillian continued to research, lecture and write.
