A blood glucose meter gives you an immediate blood glucose result. Writing test results in a logbook and comparing them over time can show you and your health care professional if your diabetes management program is working for you, or if you need to make adjustments. Keeping your logbook up to date is also a great way to see how daily events like meals and exercise impact your blood glucose. For your convenience, and to encourage better diabetes management, we provide the One Touch Logbook for you and your health care professional. The size of the OneTouch logbook is similar to a checkbook.