The authors would like to warmly thank Joe Bergin for his own pattern which was the inspiration for our own pattern of the same name, High Value First.

At Scrum PLoP 2015 Richard Gabriel was our guest, and led us in a workshop on effective writing.

We also thank the Hillside Group, our umbrella “chartering” organization for sending its representatives to give us an outside perspective on how we were doing things, in spite of the fact that we kidnapped just about everyone they sent.

We very much appreciate those of the group who, with their selfless and often anonymous gifts, made it possible for many of the rest of the team to attend the annual event. You know who you are.

A special thanks to Jens Østergaard, the Lord of Stora Nyteboda, to the management and staff of Helenekilde Badhotel in Tisvildeleje, Denmark (2011 - 2014), of the Odawara Resort in Odawara, Japan (October 2015), and of Quinta da Pacheca in Régua, Portugal (2015 - 2019), all of whom warmly hosted us for our annual events and intensive editorial sessions. They were each homes away from home for our gatherings. And thanks to all who helped out at these venues: Sandra Dias and her team, as well as Christine Hegarty, Espen Suenson, and Mette Jaquet.

A very special thanks to our manuscript reviewers outside the Scrum Patterns Group, who patiently scoured the volume of material to give us feedback. Steve Berczuk, Mark Gillett, Paul Mock, Marcelo R.Lopez, Jr., Jamie Collins, Boško Majdanac, Martin de Liefde, and others spent countless hours poring over the manuscript to point out mistakes and opportunities for improvement. There were also great comments from Al J. Simons, Jowen Mei, Peter Gfade, Kenny Munck, Nis Holst, Michiel Sival, Marko Leppänen, Johannes Koskinen and Rune Funch Søltoft. Many thanks, folks!

Many warm thanks to our editor, Brian MacDonald... Adaobi Obi Tulton...

Tsutomo Yasui and Yasunobu Kawagutchi contributed at the Sashimi Scrum Blitz in Odawara in October 2015.

Thanks to the people at for some raster-to-vector image conversions.

And, last, thanks to the many who helped review and refine the book through their presence at our Writers’ Workshops and through correspondence, including Dan Greening, Doug Shimp, Paul DuPuy, Martien van Steenbergen, and Adrian Lander.