馆客，即宋代家庭学堂的教师。一方面，馆客家境贫寒，依附主家，在教育活动之外还参与到主家的文化娱乐、社会交往活动之中；另一方面，士人把馆客当作一项过渡性职业，故其也呈现出较强的流动性。馆客的人际交往表现出以寄主家庭为中心的特点，他们推动了宋代平民教育发展，有助于儒家文化传播，也以其士道德标准为地方教化树立榜样。洪迈所撰《夷坚志》中有不少关于宋代馆客的记载，为详细了解宋代馆客群体提供了生动材料。

Guest teachers were family tutors in the Song Dynasty. On the one hand, guest teachers were poor and depended on their host families. Besides educational activities, they also participated in the cultural entertainment and social activities of the host families. On the other hand, scholars regarded guest teaching as a transitional profession; thus, they were a mobile group. The interpersonal communication of guest teachers was centered on the host families. They promoted the development of education for common people in the Song Dynasty, contributed to the spread of Confucian culture, and set an example for local moral education with their scholarly moral standards. Hong Mai's Yi Jian Zhi contains many records about guest teachers in the Song Dynasty, providing vivid materials for us to understand the group of guest teachers in the Song Dynasty in detail.