Advertising is critical for any business in today's competitive marketplace. You should always be on the lookout for new opportunities to promote your brand. Professional company letterhead is a highly-effective marketing tool. Every time someone receives correspondence from you, they're seeing your brand logo and name. Maintaining brand recognition across all mediums shows you're an established player in your industry. People will view you as a more authoritative presence, which is important for your business reputation. The great thing about investing in letterhead is that, essentially, you're getting free marketing. You'd send out letters anyway. Why not include your logo and contact information in an eye-catching way. Make sure you use the same logo on your letterhead as you use on business cards, your website, or other marketing materials. If your current logo doesn't work well for print, have a designer create something that maintains your brand identity.