A concrete example is N.K. Jemisin's 'The Fifth Season'. The book sometimes feels like a masterclass in this technique. It's written in second person for one character, a really unusual choice that makes their sections feel intensely immediate and almost accusatory, while other POVs are in close third person. That shift in grammatical person alone creates a massive tonal wall between storylines. You're inside one head in a deeply intimate, uncomfortable way, and then you're observing another from a slight, more traditional distance.
What it accomplishes, beyond just showing different events, is a thematic rift. The second-person character is an outsider, someone whose life has been shattered, and the perspective makes you, the reader, complicit in their trauma and alienation. Meanwhile, the third-person characters are often those wielding power or operating within systems, and the slightly more detached style mirrors that. The perspective shift isn't just a logistical tool to follow multiple plots; it becomes the central metaphor for the book's exploration of oppression, systemic violence, and fractured identity. The form is the content.
Another simpler but effective case is in 'Gone Girl'. The switch between Nick's and Amy's diaries is a famous bait-and-switch. Gillian Flynn uses the shift to completely reconfigure your understanding of the same timeline. Nick's sections in real-time feel defensive and evasive, while Amy's curated diary entries initially paint her as the perfect, wronged wife. The perspective shift is the entire engine of the plot's misdirection. You're not just seeing different angles; you're being actively manipulated by the limited, biased view each character provides, which is the whole point of a story about performance and perception.