yay jamaica kincaid!
but i can't leave it at that. i know kincaid as a fiction writer, for which i like her very much. and that speaks to how the question is posed...
fwiw, i think that colonialism (like racism) is a big deal, but i also think it's been constrained by the people who talk about it in these terms, so much that i can't think of a single expository book that i could recommend.
this means that, for me, fiction is the best reflection on these issues, from zorah neale hurston to toni cade bambara to kincaid to edwidge danticat (noticing a pattern here? lol). octavia butler (all hail) also speaks to these questions. i'm not the best read in this at this point, but that is definitely the direction i would recommend.
i wonder if there's another way to ask the question amorfati, that might open the issue up more? or, if this is really the question you want, then why is that? (not being at all confrontational here, just curious.)
and a second edit...
for example -- i think there are things in both albert memmi's works and fanon's works that are probably really interesting and useful (i read the colonizer and the colonized decades ago and really liked it - so, grains of salt?), but both of those authors have been so owned by ... maoists? nationalists? some yucky label... that i don't really want to recommend them.
not that they're necessarily responsible for the twists that subsequent people have put them through. just sayin'.