I am excited to announce the latest tutorial is almost ready to be submitted to the Mac App Store. What is the tutorial on? The latest version of Numbers, or as some would call the the Mavericks edition. The tutorial includes nearly 60 videos on the latest version of Numbers, including a chapter on filtering rows which is shown above. I am just putting the finishing touches on the app and I hope to submit it in the next few days. [Update] Now available in the Mac App Store!