The document discusses codes, conventions, and design elements commonly found on gardening magazines. It explains that codes are symbols that convey meaning, while conventions are established ways of doing things in a genre. Specifically for gardening magazines, the masthead is typically kept simple with the magazine's name in white font against a floral background. The main image usually features close-ups of flowers or gardens in vibrant colors. The main cover line relates to this image, while additional lines provide overviews of article content. A barcode and puff (colored shape with catchy text) are typically placed at the bottom.