This is a set of 12 books for the Fundamental Information Technology Engineer Examination (FE) preparation. All books are undamaged. The condition is very good. I have compiled mainly the reference books and problem sets that I actually used until I passed. ✅ Set Contents: 1. Fundamental Information Technology Engineer Subject B Problem Set 2. STEP BY STEP Problem Set 3. Perfect Learning Past Problem Set (Reiwa 05 / Reiwa 07) 4. Subject B Focused Measures (2025-2026) 5. Algorithm x Pseudocode Training Book 2 books 6. Fundamental Information Technology Engineer Subject B Algorithm Edition 7. Fundamental Information Technology Engineer Subject B Security Edition 8. Only the Important Parts! Fundamental Information Technology Engineer Subject B (4th Edition) 9. Beginners Can Pass Fundamental Information Technology Engineer Subject B Covers all fields (algorithms, pseudocode, security, past questions). The latest configuration including the Reiwa 07 edition and the 2025 edition.