Sari Brewster Tietjen is a second-generation dog fancier. Her mother, Mary S. Brewster, a retired dog show judge, founded Robwood Kennels. Her sister, Joy S. Brewster, is an AKC approved judge.

As a young girl, Mrs. Tietjen bred, raised and showed over 14 different breeds representing almost all the Groups. However, the breed she is most closely associated with is the Japanese Chin. Mrs. Tietjen has had the breed for over 40 years and, in the '50s and '60s, established a line of five-generation Group-placing Japanese Spaniels (as the breed was known at that time). Although she no longer actively breeds or shows, she still maintains her line of Japanese Chins, sharing her home with several of these Toy dogs.

Mrs. Tietjen is an award-winning author with four books published and a fifth one in progress. She has been a weekly columnist since 1983 with her present column titled "Sari . . . the Way It Is" appearing in Dog News. She also writes feature articles for various other publications. She won the "Fido" for Dog Writer of the Year and another one for Dog Woman of the Year. She also received an Outstanding Journalist award.

Judging since the late '60s and currently approved by the American Kennel Club for all Sporting, Hound, Toy and Non-Sporting breeds, Sari Brewster Tietjen has judged most major US shows, as well as shows in Canada and many other foreign countries.