Part consultancy, part thinktank, part social enterprise, Halcyon helps you prepare for and respond to personal, organisational and societal change.

Halcyon's 52:52:52 campaign on Twitter will help you address 52 issues with 52 responses over 52 weeks.

To be a catalyst is the ambition most appropriate for those who see the world as being in constant change, and who, without thinking that they control it, wish to influence its direction - Theodore Zeldin

A Mundane Comedy is Dominic Kelleher's new book, which will be published in early 2020. We will be publishing extracts on this site and across social media during the last quarter of 2019. Please feel free to contact us with any questions about the book.

Henry David Thoreau

On Henry David Thoreau

In the 1840s Henry David Thoreau swapped his busy schedule in Concord, Massachusetts, for a wooden hut he built himself near Walden Pond. We had the privilege to visit Walden in July 2012; it exceeded expectations in its tranquility and beauty - and the swim in the pond itself was unforgettable.