My name is Inayaili de León Persson and I'm a Senior Designer at Microsoft, creating the design system for Azure DevOps, and more.

I'm Panamanian Portuguese, born in the USSR, and have been living in London since 2008 — my favourite city in the world.

I love naps. And I'm obsessed with podcasts and audiobooks.


  1. LinkedIn
  2. Notist
  3. Twitter
  4. GitHub
  5. Medium
  6. Tumblr
  7. Pinboard
  8. Flickr
  9. Spotify


  1. Moving to Responsive Web Design

    Apress, August 2016

  2. Pro CSS for High Traffic Websites

    Apress, April 2011


  1. Web Designer Notebook (Blog)
  2. London Chronicles (Blog)
  3. Belfast Chronicles (Blog)
  4. Ubuntu Design (Blog)
  5. Smashing Magazine
  6. 24 Ways
  7. A List Apart
  8. The Pastry Box Project