This technical report sets out an example of a participant workbook, considering how a particular workbook was created and used in online workshop tasks. The idea is that, as researcher-interventionists, we can design and distribute provisions for participants in workbooks, through which they can maintain their own archive of ideas, reflections, and expansive progress. The workbook provides graphical and textual stimuli for double-stimulation tasks; annotations and illustrations arising from encounters with mirror data; and observations of their own daily reality and related disturbances. The design aims to support participants to record, archive, and retrieve their thoughts and acts in agentive ways concomitant with the Change Laboratory approach. The resources described have proven useful in online Change Laboratory projects, whose contexts are briefly described.