Nikki’s world is full of dramatic highs and lows: dealing with her arch-nemesis MacKenzie Hollister, navigating crushes (especially on Brandon, the sweet photographer she likes), coping with embarrassing family moments, and finding her place among friends like Chloe and Zoey. Each book combines laugh-out-loud humor, doodles, and relatable middle-school struggles with a diary-style format that makes Nikki’s voice personal and engaging.
The series explores themes such as friendship, self-confidence, bullying, and embracing what makes you different. Across the collection, readers see Nikki grow while still stumbling through hilarious and cringeworthy situations that keep the stories fun and accessible.