Below are all the downloads you're going to need for this lesson - please download them before you start the lesson.

If there aren't any links or buttons then no lesson materials are required (or maybe I just forgot to add them, in which case - let me know in the comments below!)

​Below is a list of external resources that you might find useful for this lesson.

If there is a particular resource that you've found useful, let me know and I'll add it here.

​Below is a list of all the things you should take away from this lesson.

If there's anything you're not sure about, ask questions and leave your thoughts in the comments below or in the course forum.

Here are the talking points from this lesson. Chat in the comments below or in the dedicated course forum.

Does the answer surprise you?

How long does it usually take you to clean your data?

Tell me in the comments below!

​This course has a dedicated forum where you can ask questions, get answers and connect with our learners.

You can find the forum here: