The personal touch of a thank-you note can strengthen a professional business relationship. It demonstrates an interest in the other person's business that is memorable.
All other things being equal, people prefer to do business with those they know, like, and trust, according to author Bob Burg in his book Endless Referrals. Writing thank-you notes is a very powerful way to strengthen the very types of relationships that generate word of mouth referrals for a small business.
A written note expressing gratitude touches on each of Burg's three elements of referral networking:
Thank-you notes that contain clearer and more specific information appear more sincere, and will be appreciated more by the recipient.
Thank-You notes may be hand written or printed, according to How to write effective thank-you letters: 8 tips from Write Express. What is important is that they are unusual and sincere, which makes the writer stand out among similar professionals. Notes may be written for good service, charitable donations, or even small things like having a conversation at a business networking event. Expressing gratitude in writing also speaks volumes about how the thank-you note writer would treat his or her own clients.