Unit 14 Ceitificatei and Ciedentiali
Certificates and credentials are quite formal writings and documents both in content and in format.They are issued officially by an authorized organization，committee，educational institution，etc.
The formal and official nature of certificates and credentials determines the formality of language and format used in those official documents.
Certificates and credentials should include：
●The classifications of the certificates or credentials issued，e.g.Certificate of Graduation，Certificate of Achievement；(https://www.daowen.com)
●Detailed information about the person to whom the certificates or credentials are issued；
●An official stamp or seal where necessary；
●The signature of the head of an authorized organization，committee，educational institution；
●The time and date of the issue of the certificates or credentials.