1. Data Visualization: How to truly tell a great story!
Jonathan Stewart

3. Don’t Forget Silence your cell phones Online Evaluations
Submit for raffles by 3:30PM

5. Business Intelligence Consultant
Jonathan Stewart
Business Intelligence Consultant
@sqllocks

6. What this isn’t… VS

7. What this isn’t… Use this chart, don’t use that one.
Use this color, not that one.
Do this, don’t do that.

8. What this is…
Give general guides
Show theory to let YOU decide

9. Agenda History of Data Visualization
The types of data and visualizations
How we see the world
It’s All About The Audience
Pitfalls to avoid
Where to learn more!

10. The History of Data Visualization

11. Every day we create 2.5 quintillion (1018) bytes of data - so much that 90 percent of the world's data today has been created in the last two years alone. -IBM CMO Study, 2011

12. Çatalhöyük – 6200 BC

13. Most ubiquitous today?

14. Most ubiquitous today?

15. Most ubiquitous today?

16. Different Types

17. Two main types of data visualization
Exploration
Explanation

18. Exploration Discover new areas of interest Pose new questions
Discover new stories

19. Explanation Answer a question Support a decision Convey information
Increase efficiency

20. Two main types of data
Qualitative
Quantitative

21. Qualitative Can also be categorical Favorite color = blue
Gender, State, etc.
Non-Additive facts and some semi-additive

22. Quantitative
Expressed in numbers and can be counted and aggregated easily
Fully additive facts

23. How we see the world

24. The need to visualize data
"Use a picture. It's worth a thousand words.“
-Tess Flanders, 1911

25. The need to visualize data
Human brain processes images 60,000x faster than text.
-Persuasion and the Role of Visual Presentation Support: The UM/3M Study, 1986
90 percent of the information transmitted to the brain is visual.
-MIT News, January 16, 2014

26. Ninio’s Extension Illusion
How many dots do you see?
Ninio’s Extension Illusion

27. The Gestalt Principles

28. Gestalt Introduced by Christian von Ehrenfels
Psychological term meaning unified whole
The whole is different (not greater) than the sum
Gestalt Effect –
Ability of the mind to generate whole images from a collection of parts

29. Law of Pragnanz

30. Law of Pragnanz

31. Law of Pragnanz

32. Law of Continuity

33. Law of Continuity

34. Law of Continuity

35. Law of Similarity

36. Law of Similarity

37. Law of Similarity

38. Law of Focal Point

39. Law of Focal Point

40. Law of Focal Point

41. Law of Proximity

42. Law of Proximity

43. Law of Proximity

44. Colors

45. Colors We don’t see the same thing.
They have innate meanings and feelings

46. Color vision deficiency (CVD)
Affects approximately 1 in 12 men (8%) and 1 in 200 (<1%) women in the world.

47. Color blindness

48. Normal Vision

49. Deuteranopia

50. Protanopia

51. Tritanopia

52. What can we do? Be conscious of red and greens together.
Find a CVD friendly palette when possible.
Shading and gradients!
Use help!

53. The Psychology Color Wheel

54. The Psychology Color Wheel
Combines the energy of red and the happiness of yellow. It is associated with joy, sunshine, and the tropics.

55. The Psychology Color Wheel
The color of sunshine. It's associated with joy, happiness, intellect, and energy. Also caution.

56. The Psychology Color Wheel
The color of nature. It symbolizes growth, harmony, freshness, and fertility.

57. The Psychology Color Wheel
The color of the sky and sea. It is often associated with depth and stability. It symbolizes trust, loyalty, wisdom, confidence, intelligence, faith, truth, and heaven.

58. The Psychology Color Wheel
Combines the stability of blue and the energy of red. Purple is associated with royalty. It symbolizes power, nobility, luxury, and ambition.

59. The Psychology Color Wheel
Associated with light, goodness, innocence, purity, and virginity. It is considered to be the color of perfection. White means safety, purity, and cleanliness.

60. The Psychology Color Wheel
Associated with power, elegance, formality, death, evil, and mystery.

61. The Psychology Color Wheel
The color of fire and blood, so it is associated with energy, war, danger, strength, power, determination as well as passion, desire, and love.

62. The Audience

63. Consider Your Audience
Are they technical?
Are they a 5000ft 1524m decision maker or implementer?
What will they use it to do?
What information is needed to accomplish their goal?

64. 5 Pitfalls to Avoid Visual Clutter – Keep it Simple Color Abuse
Poor Design
Bad Data
Pie Charts 

65. Summary Know the purpose Know the type Know the audience
Avoid pitfalls
Keep it simple!

66. QUESTIONS

67. Resources
Gestalt Psychology –
Color Matters –
CVD Color Lab -

68. Business Intelligence Consultant
Jonathan Stewart
Business Intelligence Consultant
@sqllocks

70. Thank You
This FREE SQL Saturday is brought to you courtesy of these sponsors, speakers and volunteers who staff this event