This logbook is a good tool to record all of my daily work activities. I have recommended this logbook to fellow engineers. They also have started using logbooks. The format of this book makes it possible to use it regardless of the year it was printed. This hardcover copyright is 20 years old and works as well as a new release. I carry it with me on all job sites and use it in the office. These logbooks are admissible in arbitration cases as legal records. Keep in mind that if it's not recorded it never happened. I recommend purchasing with personal money as the logs are then considered personal property not belonging to your employer. It also is very useful for year end appraisals.