Data Visualization for OBI Book at Kscope

Tim and I were attending the Kscope16 conference in Chicago and were thrilled to see the Jessica had brought her well-worn book, Data Visualization for Oracle Business Intelligence to the conference.  As you can see from the picture, the book is well-worn, with coffee stains and color tabs.  The memorable part of the conversation is when Jessica said she was reading about data visualization at her kid's baseball games!  It was great to meet someone else passionate about their BI dashboards. Thanks for saying hello, Jessica!

Data Visualization book is now on Kindle MatchBook!

Hey everyone! Do you like the convenience of having resource books on your tablet and also in hardback? Now you can get the best of both worlds! Check this out:

If you buy a new print edition of Data Visualization for Oracle Business Intelligence 11g (or purchased one in the past), you can buy the Kindle edition for only $2.99 (Save 91%). Print edition purchase must be sold by Amazon.
So go to the Amazon website and pick up both versions of the book today! 


Perception of Colors of Dresses and Data Visualization

Finally, people are talking about color perception! Everybody is talking about the white/gold/blue/black dress that has gone viral as people discover that color perception is not absolute.

We cover this in our recent Oracle Press book on Data Visualization for Oracle Business 11g. From page 273: ‘We the authors often show a handful of optical illusions involving color perception/misperception during our data visualization workshops to drive home the point that we humans don’t see color as much as we “experience” it as our brains attempt to construct a color model for a given situation.’ In our presentation from BIWA Summit 2015 we showed a color spiral image.

Most people we talk to see a green and a blue spiral. In our presentations, we use a moving circle to demonstrate that these colors are actually the same value: RGB 0,255,151. Cick on the thumbnail of the spiral and take a print screen and use the eye dropper tool in Paint if you don’t believe me! Our brains perceive the colors differently because of the adjacency of other colors.

This becomes very important in constructing business intelligence dashboards. Color selection on dashboards affect how we perceive the data and the business insights obtained in ways we don’t even recognize. For sequential data, use sequential color schemes (e.g. increasing shades of blue for color-coding states based on increasing Revenue amount); for qualitative data use qualitative color schemes (e.g. various pastel colors of equal darkness to represent various brands).

For more information on the book that brother Tim Vlamis and I published in 2015, see our web page at

Our New Book is Out! Data Visualization for Oracle Business Intelligence 11g Webcast Feb 17

Techcast February 17, 1pm Eastern, 12 noon Central, 11am Mountain, 10am Pacific

Dan and I will kick off the introduction of our new book from Oracle Press titled “Data Visualization for Oracle Business Intelligence 11g” in a special IOUG BIWA Techcast on February 17, 2015 at noon Central.  Register here to attend .

We’ll cover some of the highlights from the book, take questions from the audience on their stickiest data visualization challenges, and offer advice on how to immediately improve your dashboards, visualizations, and analyses in OBIEE 11g.

Recognition of the importance of data visualization is growing every day in the business analytics community generally and in the Oracle business analytics audience specifically. We’ve seen the power of well-designed visualizations and how they deliver significant value to organizations through increased business insights, improved understanding of data relationships, and heightened engagement with business intelligence systems.

2-Minute Tech Tip on Data Visualization for OBIEE 11g Posted

Thanks, Bob Rhubart, for posting the 2-minute tech tip on Data Visualization for Oracle BI 11g. This is a preview of Tim and my Oracle Press book with the same title.  You can see more of Bob's 2-minute tech tips on his YouTube channel.


Here is the link to the video in case embedding doesn't work for you: