This is "Well-Understood Microsoft Excel 2019 Drill." * There are writings in the first half. * The second half is in relatively clean condition. * Non-smoking environment, no pets. * Instant purchase is available. * Please understand that there may be some signs of use as it is a used item. This book allows you to learn basic to practical Excel operations in a drill format. As there are writings, it is recommended for practice and review. Please purchase only if you understand the condition. Feel free to comment if you have any questions.