Results reveal that textbook satisfies overall needs and requirements of the students as 47.93% of the students evaluated the technical design of the textbook units as "high", while 23.11% of the students evaluated the technical design of the textbook units as "mid", and only 10.33% of the students evaluated the technical design of the textbook units as "weak". Also, the majority of students believed that the textbook has adequate explanatory pictures and a diversification of pictures. 83.79% of the students evaluated the book as having a high degree of internal organization and layout. This can be shown in the below figure 1: