Are another element influencing the way the company is perceived. Seemingly, no one attaches much importance to the form of letters or invoices, but it is a very illusory approach. Letterhead or invoices contain a logo and contact details, so if properly designed, the power of things is a subtle form of advertising. Undoubtedly, such documents present a professional presentation and affect the prestige of the company, so it is worth taking it into account and leaving the rest in our hands.