Knock Knock is an American gift company and book publisher founded by Jen Bilik on January 1, 2002. The company is based in Los Angeles, California. Bilik, previously a book editor, launched Knock Knock in 2002 with the proceeds from the sale of her Manhattan apartment.
In January 2018, Knock Knock acquired Emily McDowell Studio and Sisters of Los Angeles. The three individual companies are now under one umbrella: the newly formed Los Angeles based Who's There Group.
In 2007, Knock Knock began publishing humorous nonfiction including How to Traumatize Your Children: 7 Proven Methods to Help You Screw Up Your Kids Deliberately and with Skill.
Highest paying job titles at Knock include Director, Growth Marketing, Senior Programmer Analyst, and Software Engineering Manager