Louise Rennison (11 October 1951 – 29 February 2016) was an English author and comedian renowned for her Confessions of Georgia Nicolson series, aimed at teenage girls. The beloved series chronicles the adventures of Georgia Nicolson and her group of friends, fondly known as the Ace Gang. Rennison's writing career took off with the success of her first two novels, Angus, Thongs and Full-Frontal Snogging and It's OK, I'm Wearing Really Big Knickers, both of which were adapted into the film Angus, Thongs and Perfect Snogging.

Before achieving fame as a novelist, Rennison captivated audiences with her one-woman live show Stevie Wonder Felt My Face, which garnered significant acclaim in the 1980s. Her comedic talent was further showcased in performances such as Bob Marley's Gardener Sold My Friend and Never Eat Anything Bigger Than Your Head.

Rennison's remarkable contributions to literature include the Misadventures of Tallulah Casey series, focusing on the younger cousin of Georgia Nicolson. Her writing was not only popular but also critically acclaimed, earning her the Nestle Smarties Book Prize, the Michael L. Printz Honor Book, and the Roald Dahl Funny prize for Withering Tights. Louise Rennison's legacy as a pioneering author and comedian continues to inspire and entertain readers and audiences worldwide.