Welcome to Dylan Wiliam’s website


Inside the Black Box, and other booklets containing ideas about how to improve formative assessment in schools, are available from GL Assessment in Europe, Hawker-Brownlow in Australasia, and Learning Sciences International in North America.

You can email me at dylanwiliam@mac.com and follow me on Twitter @dylanwiliam.

As far as I am aware, the copyright to the contents of this site is held by me and my various co-authors, and the materials here may be freely used and disseminated provided the source is acknowledged. Formally, this is an Attribution-No Derivative Works 3.0 United States license as specified by the Creative Commons.


Professional development

Finally! The revised  Embedding formative assessment pack for schools and colleges to run their own two-year professional development programme on formative assessment is now available worldwide. In Europe, this can be ordered through SSAT, in Australasia through Hawker-Brownlow, and in North America from Learning Sciences International.  Further details of the pack are here.

Also, a series of high-quality video presentations by Dylan Wiliam, with a total running time of over two hours, is now available free world-wide. Details are here.