diff --git a/README.md b/README.md
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@@ -2205,6 +2205,7 @@ I spend a lot of time on internet, losing myself in lot of topics. I choose GitH
 * [Maura Thomas](https://hbr.org/2017/02/your-teams-time-management-problem-might-be-a-focus-problem) - (2017) Your Team’s Time Management Problem Might Be a Focus Problem
 * [Amar Singh](https://medium.com/@ummerr/youre-working-in-the-wrong-place-e289036ee01c) - (2017) You’re working in the wrong place. (if you’re working in an open office)
 * [Logan Mayville](https://www.hellosign.com/blog/busy-kills-productivity) - (2018) How Being Busy Kills Productivity
+* [Jory MacKay](https://blog.rescuetime.com/225-million-hours-productivity/) - (2018) Productivity in 2017: What we learned from analyzing 225 million hours of work time
 
 > Tools
 * [Chris Barber/ToolsOfTheTrade](https://github.com/cjbarber/ToolsOfTheTrade) - Tools of The Trade, from Hacker News.