One of the best things about monday.com is that it's very visual and gives you a big picture at a glance, and Status columns is one of the key factors to this.
The Status column allows you to see if the task is completed, is being worked on, or any status you wish:
To add a column simply click on button in the upper right-hand corner of the board and choose Status from the dropdown menu:
Now it's time to edit the Status labels! To do this click on one of the Status column cells and click on Add/Edit Labels button in the bottom:
Here you can change the order of the status labels, the wording, and add more labels.
Don't forget to click Apply once you've finished!
In each of your boards, you can choose the labels that define a status as "done". Click on your status column and pick "column settings". From there, click on the label color you want to pick as "done".
You can also merge the Status column with the Due Date to create reminders. Read here on how to do this.
And don't forget, if you have more questions or need help - just let us know at firstname.lastname@example.org