This has been quite an interesting chapter because a lot of the content wasn't true!

We can have some confidence about the historical information. We found out that the beginnings of data visualization started with mathematics and analytical geometry. Once the use of charts was established—largely by Joseph Priestly and then followed by William Playfair—their use became more and more commonplace as useful ways of telling stories with data.

We should have a better understanding of our audience. Of course, this can only apply to most of our audience because there are always outliers.

Design guidelines are never set in stone. What is correct in design today will have changed tomorrow—just look at the iPhone. However, fundamentals will not change and we should be aware of them.

We have reached the end of the road for this book. By now, hopefully, your Qlik education will have advanced towards mastery. Of course, you will not become a master until you start to implement these practices and even create your own best practice. Let's hope that this book is a good foundation.