☆Recommended for those who want it immediately☆ After confirming purchase and payment, 【Ships within 24 hours】 I have already packed it, so I can ship it immediately ^_^ 【Product Description & Contents】 New System Denken (Electrical Engineer) 3rd Class Subject-Specific A Problems & B Problems Master Course Series of 4 books set Denki Shoin (Publisher) Certification Study Guide Study Books Not sold separately. Denken 3rd Class Subject-Specific A Problems & B Problems Master Course Vol. 1 Theory Denken 3rd Class Subject-Specific A Problems & B Problems Master Course Vol. 2 Power Denken 3rd Class Subject-Specific A Problems & B Problems Master Course Vol. 3 Machines Denken 3rd Class Subject-Specific A Problems & B Problems Master Course Vol. 4 Regulations 【Condition】 ※ There are many writings. Please consider if you don't mind. As this is a used item, there are signs of aging such as sun damage, folds, scratches, and wear and tear, but there is no problem with reading. 0917n1028+88098083299