Great Wall Chinese is a major project planned and organized by the China National Office for Teaching Chinese as a Foreign Language (NOCFL). It serves as the main textbook for the Confucius Institutes, the NOCFL centers for Chinese learning established worldwide. The goal of Great Wall Chinese is to develop students' communication skills in Chinese through various teaching methods, such as online multimedia courses and CD-ROMs. This learning resource is suitable for both classroom instruction and independent study. "Essentials in Communication" is designed for beginners in Chinese. The content covers personal information, survival communication, daily life, learning and working, social activities, and more, and focuses on meeting the basic needs for communication in daily life.