Level one. According to official website, Liaoning Education Electronic Audio-visual Publishing House Co., Ltd., the General Administration of Press and Publication divides the publishing houses into different levels, such as level 1, level 2, level 3, level 4 and level 5, and Liaoning Education Electronic Audio-visual Publishing House is recognized as a first-class publishing house. Liaoning Education Electronic Audio-visual Publishing House is a provincial publishing house headed by Liaoning Provincial Education Department, which was established in 1985 and belongs to Liaoning Education College.