I have seen two distinct descriptions of owner, the second arg passed to om component constructor fns. In the om wiki, it is described as the “backing om”, or “backing React component”. But Learning Clojurescript, p. 177 defines it as “the real DOM element where this component will be rendered”. Can it be anyone of these, or am I missing something? Thanks for any advice… Edit:The defs are both correct. The wiki’s description is for om/get-props - I haven’t found yet a wiki description of owner in (fn mycomponent [data owner]..).