To what extent can I use previously self-published poems in a more expansive poetry publication?
Hello all, I'm not certain where to post this so I've posted a few places across Reddit, but essentially here it goes. A few years back, I self-published a short poetry chapbook. The timing of the publication wasn't great, and because of personal circumstances I chose not to announce the publication or do any advertising. In the past year or so I put some posts up that included a link to my poetry publication, but still no big advertising or anything, and I've not gotten any sales.
I'm now working on a larger collection, which I think could benefit from including many of the works included in the original chapbook. I'm not worried about copyright, because in self-publishing I maintained the copyright of my work. What I'm wondering is how it comes off to have what is essentially the first section in my new publication be almost exclusively work from the previous collection. All further sections expand upon those poems and are composed of almost exclusively new works.
Any advice, suggestions, or considerations are helpful. Thank you.