Advertising sent by our company to potential clients in the form of an open envelope with an attachment in the form of a transparent paper tray. The second case is of the campaign of Casus for the promotion of the Vrtba Gardens, including A4 plates. The creative design aimed to reach potential customers in an unconventional way, and to give both graphic processing and contents. The customer who receives this package can get an idea of other alternatives for sending letters and have a guide on how to implement their own mailing campaigns. Together with promoting our core business, the promotion of the baroque gardens is also a completely different form of advertising media to which most clients use or have come across.