Dork Diaries 12 Books Collection By Rachel Renee Russell. With fun sketches and doodles, the diary entries find Nikki opening up her heart as she battles with her arch-nemesis Mackenzie over her dreams of becoming a pop star and tackles the subject of love with hilariously dorky consequences!. Meet Nikki Maxwell and prepare to read some truly a-dork-able stories with this 12-book collection of Dork Diaries stories by Rachel Renee Russell. Written in a fun-filled diary format, these books offer an insight into the life of the tween dork, Nikki. When she moves to a new school she decides it's the perfect time to leave her old lame ways behind - but things are never that simple. With fun sketches and doodles, the diary entries find Nikki opening up her heart as she battles with her arch-nemesis Mackenzie over her dreams of becoming a pop star and tackles the subject of love with hilariously dorky consequences. These books will be enjoyed by any child aged 9 or over who enjoys (or endures!) the sparklier side of tween life.