Task: Text to Code
Input (English): Step 1: For each row in Course_Authors_and_Tutors table, find the corresponding rows in Courses table.
Step 2: find the number of rows of each value of Courses's author_id in the results of step 1.
Step 3: find personal_name, family_name, course_description of step 1 results with largest value in the results of step 2
Output (English): SELECT T1.personal_name , T1.family_name , T2.course_description FROM Course_Authors_and_Tutors AS T1 JOIN Courses AS T2 ON T1.author_id = T2.author_id GROUP BY T2.author_id ORDER BY Count ( * ) Desc LIMIT 1