Thank you for viewing. Regarding shipping: For example, If you purchase between the evening of the 1st (Monday) and the 7th (Sunday), your order will be shipped on the 13th (Saturday) or 14th (Sunday). If you purchase between the evening of the 8th (Monday) and the 14th (Sunday), your order will be shipped on the 20th (Saturday) or 21st (Sunday). If you purchase multiple books, we may be able to offer a discount on shipping. Please comment if you are interested. (This may not be possible depending on the thickness of the books.) If you purchase multiple books without commenting, we may ship them together at the original price. 2024 Revised Edition Develop knowledge and skills with the year-round curriculum "MyQuest" ↓ Develop the thinking and expression skills that come after with "Complete Breakthrough: Subject-Specific Edition." ↓ To the Complete Breakthrough series, a collection of problems that cultivate the ability to solve aptitude tests. A text that thoroughly and deeply studies the content of textbooks and develops skills. Focusing on standard to advanced problems with a large volume of questions. You can firmly acquire the knowledge necessary for elementary school. Aiming to improve "thinking and expression skills," we also incorporate problems in each subject that focus on "writing and expressing" and "understanding by looking at diagrams." The answer explanations are structured in two tiers. The upper tier contains a reduced-size answer, and the lower tier contains detailed explanations such as intermediate steps and solutions. There is a large volume of problems, including difficult ones.