Is colonialism the only theme in the novel, In The Castle of my Skin? I SEE ONLY THE THEME OF COLONIALISM. I BELIEVE THERE ARE OTHERS. PLS SEND ME THE REST I PRAY YOU.
According to the eNotes study guide, there are two other major themes: language and race. Both of which have direct correlations with the theme of colonialism, but they can be analyzed and evaluated as independent themes.
You are right, there are more themes, mainly Language and Race; you can find detailed information at the link below.
Also, there is also a theme of "coming-of-age" in this book apart from themes like colonialism, language and race.