TAC's Denken 2nd Class 2nd Exam Preparation Mechanical Control DVD Set, 25 Discs. Lecturer: Takeo Ono - Brand: TAC - Format: DVD only, no text. 2024 Edition - Quantity: 25 DVDs total Mechanical Control - 2nd Exam Preparation Lectures: 20 discs - 2nd Exam Summary: 1 disc - Pre-Exam Practice Tests: 4 discs Total: 25 discs Although there is no text, the instructor reads quickly. Key points are displayed with text and diagrams and explained in detail. The preparation lectures consist of 20 sessions covering the text and practice problems. A summary lecture consolidates this information. There are 4 sessions covering past exam questions (4 questions). Text explanations and exercises are displayed and read aloud. There is also advice. While having the text would make understanding easier, it might be a bit difficult to study without it. However, it seems possible to learn somehow. Since the text isn't displayed, what do you think? It depends on the individual, so it's hard to say. Personally, I think it's possible to learn and it's very helpful. Please purchase at your own risk if you are okay with only the DVDs. The DVDs have some minor scratches, but are mostly clean. All discs were playable. Thank you for viewing.