In Order to view the "Log Book" in the MTDVAT application , follow the steps below :
Step 1.  Click on the hamburger menu in the right-hand corner of MTDVAT application .
Step 2.  Later, click on “View/Edit my Account” .
Step 3.  It directs to a page which contains a lot of options with a "View Log Book" option. 
Step 4.  Click on the "View Log Book" option. 
Step 5. It directs you to a page, which has all the recorded activity of yours on MTDVAT..

RoadMap on how to view the LogBook: Click on the hamburger menu in MTDVAT -> View/Edit my account -> View Log Book .