Do you want to keep track of votes on "Is Liferay Book a proper book"? The Polls portlet (portlet ID 25) and the Polls Display portlet (portlet ID 59) are useful tools. The Polls portlet allows us to create multiple choice polls that keep track of votes and display results on a page where a lot of separate polls can be managed and that is configurable to display a specific poll's results, while the Polls Display portlet allows us to vote for a specific poll's question and view the results.
First of all, we plan to add questions. As an administrator, you might need to create a lot of questions for polls, such as "Will Liferay be the best portal solution for this year 2015?" and "Do you plan to buy a Liferay book next month?" and then manage these questions as well as the votes on these questions. Refer to the following screenshot for more details.