Thank you for viewing! Practical books explaining data analysis methods in business ◇ Data Analysis for Problem Solving 　　Author: Kenta Saito ◇ Data Analysis & Utilization Techniques for Business Professionals 　　Author: Manabu Kometani These books have been stored on the bookshelf for a long time, so the sides and covers have discolored, faded, and have minor scratches due to aging. There are no other writings, noticeable stains, or tears. ↓↓↓↓↓↓ Considering the above points, please understand that these are used items stored at home and inspected by an amateur before purchasing.