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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.


Societal - i.e. problems we all face and possible responses, at the national and/or international levels.

What's Changing? - Memory
Halcyon Impacts 30 September 2019


Please see below recent memory-related change.


See also:


September 2019

On What We Think



These pages highlight our founder Dominic's subjective views on the ever-changing range and scope of subjects that Halcyon focuses on.

This is less a blog than a set of irregularly updated and often fragmentary views - on ideas and values, places and people - evolving over time into mini essais which pay humble homage to the peerless founder of the genre. Our writing is provisional, always open to change as new thoughts and ideas emerge.

The kaleidoscope is Halcyon's prime metaphor, encouraging us to embrace change and to view issues through an ever-moving series of lenses.

WHAT MAY CHANGE in the future?
Halcyon In Future 30 September 2019

Please see below changes likely to occur over the coming years. Contact us for help in dealing with such changes.

What's Changing? - Knowledge
Halcyon In Business 30 September 2019


Please see below selected recent knowledge-related change.


See also:


July 2019

What's New? - Self-Esteem
Halcyon Identifies 30 September 2019


Halcyon curates the most significant self-esteem-related content from carefully selected sources. Please contact us if you'd like our help with self-esteem-related challenges.

What's Changing? - Sleep

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Please see below recent sleep-related change.


See also:


September 2019


August 2019