Specialized books covering basic aircraft maintenance techniques and regulations. - Basic Aircraft Technology (with scribbles) Retail Price: ¥5170 - Introduction to Avionics Retail Price: ¥2530 - Aviation Law ¥4070 - Fundamentals of Human Factors ¥1870 - Introduction to Basic Aircraft Technology: Basic Tools Edition ¥1870 - Aircraft Maintenance Technician Question Collection - Questions (some writing) ¥2970 - Aircraft Maintenance Technician Question Collection - Answers (some writing) ¥4070 - New Aviation Regulations Commentary (some writing) Retail Price: ¥2860 - Aviation Special Radio Technician - Regulations Retail Price: ¥1760 - Aviation Special Radio Technician - Radio Engineering (some writing) Retail Price: ¥1650 Total: ¥28820 → ¥18700 For individual purchases: 20% off the retail price. The New Aviation Regulations Commentary, Radio Engineering, and the Aircraft Maintenance Technician Question Collection (both questions and answers) have some writing, but it's within acceptable limits. Will sell to those who don't mind the writing. Thank you. Thank you.