Dr. Mustafa Değerli completed the online course "Communicating with Diplomacy and Tact" on April 13, 2020, which lasted 1 hour and 5 minutes. The Vice President of Learning Content at LinkedIn congratulated Dr. Değerli on continuing his learning, which expands his perspective, sharpens his skills, and makes him more valuable. The certificate was issued from LinkedIn Learning located in Sunnyvale, California.