About Us

Mark Lewison

Interior Designer/Author


Mark Lewison received his MS degree in Interior Design from the University of Massachusetts. Since 1986, he has worked extensively as a professional interior designer, sharing his creativity and vision with both residential and commercial clients. In addition to running his interior design company, Mark is a full time faculty instructor in the Interior Design Department at The Art Institute of California – Hollywood.


John R. Haigh

Mobile App Producer


John R. Haigh is a Southern Californian entrepreneur. Co-creator of the Mark On Call™, Mark On Call™ HD and App Popular iOS applications, his apps have been recommended in The Guardian, Good Housekeeping, Men’s Health and MacWorld. “What Would You Do With This Room?” is his first collaboration in the literary field.


Karl Hartzel

Lead Developer


Bio coming soon…