The 'All Sorts Carrie'

I was in a workshop today when I remarked that I was frustrated having a number of published poems I liked that hadn't fit into books, when one of my fellow workshoppers said she'd like a 'liquorice all sorts' book of these poems. My first two books are in this vein, connected more by threads of themes than all-consuming projects, but the latter three (two published, one in mnauscript) are all very thematically focused. I think part of my struggle is that not only are my themes diverse, but I tend to range widely stylistically, too. So how do I do it? How does one make a book of utterly disparate poems? I'd love to hear what you think.