I passed the 2025 Kyushu exam with this book and "Zuru Hon" (a cheat book), studying independently on YouTube. I used to write small circles and crosses next to the questions with a pencil. I erased them with an eraser, so I apologize if there are any remaining marks. I used it for about six months, so it shows some wear, but I think it's still usable. This is a problem book for the Registered Sales Representative exam, offering an efficient study method. - Title: Deru Jun Tourokuhanbaisha Zurui! Goukakuhou Mondai-shuu (Registered Sales Representative: Cheat! Pass Method Problem Book) - Publisher: YTL - Question Number: 42 - Genre: Business/Economics 2500 yen + tax Thank you for looking.