Grounded in solid science but written in plain English, these cards enable users to diagnose 52 varieties of flatulence and apply their knowledge in the field. With two bonus farts included, each deck also doubles as playing cards, giving new meaning to the term royal flush. At Knock Knock our sensibility is proudly distinct, in contrast to the overwhelming homogenization that characterise committee-created corporate product. We believe that many people are intelligent enough to appreciate wit, wordplay, and conceptual thinking, so we strive not to dumb down. Our customers comprise the impish, the dapper, the droll, the young-at-heart, those who prefer the humour of the truth to false feel-good affirmations. Knock Knock seeks to integrate art and commerce by creating original, authentic, non-cynical products that support themselves in the marketplace. Our inspirations are Charles and Ray Eames and Tibor Kalman, designers who refused compartmentalization and brought intelligence, aesthetics, and creativity to everything they touched. Also, we read a lot. Following are a few more things we believe Ethics and decency are immeasurably important. Whether mass produced or handmade, products should be created with care. Craft is important for the soul as well as the hands and eyes. Art is not necessarily superior to craft. Humour makes everything better. Not everything should strive to be accessible to the lowest common denominator, or any common denominator, for that matter. Empty feel-good affirmations are an instant gratification of diminishing returns, slyly interpreted truths last longer. Despite the rise of the screen, much that is interesting and innovative can be done with printed matter, though paper should be recycled whenever possible. Good should be rewarded. Problems should be discussed and resolved. Mistakes should be admitted and learned from. Common sense is uncommon. Ego is annoying. Turn signals should be used.