A journal is a scholarly publication that is published periodically containing articles written by researchers and experts. Journals can exist in print or electronic format, with electronic journals being accessible online. All journals are assigned a unique 8-digit International Standard Serial Number to identify the publication regardless of format. Journals contain different types of articles including research articles, review articles, letters, and others focused on sharing new research findings and knowledge. Maintaining a journal provides benefits such as improving mental health, boosting confidence, strengthening writing skills, and enhancing critical thinking.