Malorie Blackman's 2001 YA novel Noughts & Crosses explores themes of systemic racism and power through the forbidden romance of Sephy and Callum. The story follows the two teenagers navigating their deeply divided, segregated society, which is the first in a six-book series.
You can find in-depth analysis and academic study guides on BBC Bitesize or read a detailed review on Comfort Reads . Noughts Crosses