Olson said it was difficult to pinpoint Booktown highlights as there were 50 events.
"We have a whole lot of events about women and literature from Women Go Wild to Patricia Grace and her book Cousins, and a massive amount of women poets as well.
"Falling under the environmental theme from Walking Towards Writing, there's Poems Against Sustainability, which is about having good conversations around climate change."
On Friday the now-famous Fish'n'Chip supper will be held, with guest speaker the acclaimed writer Witi Ihimaera.
The rest of the weekend will be filled with stellar writers and literary entertainment, starting with Late Nite Lit's singing sensation Moana Leota and her band, putting poetry to music.
Brains will buzz all weekend with talks by literary heavyweights including Dame Fiona Kidman, Patricia Grace, Owen Marshall, Victor Rodger, Roger Hall, Joy Cowley and Selina Tusitala Marsh.
On the programme are red-hot poetry readings, a celebration of Asian-Kiwi writers, political autobiographies, horror stories in a historic hotel, award-winning children's book illustrators, and discussions on honest and bold memoirs like Megan Dunn's Things I Learned At Art School, and Noelle McCarthy's Grand.
Olsen said Booktown was a fun way to find new authors.
"There might be an event that's on a topic that you're interested in and can come and check it out.
"You don't have to read, you can come and listen to an author talk about what they've written, and maybe that's a way in."
She said while Featherston was small, the event was not.
"This is a national literary event that happens to be held in Featherston.
"We get really distinguished writers.
"A really nice thing about it is that the venues are small, they're cosy and they're comfortable places where people have experienced big life events already.
"So that might be a church hall or a town hall or a school, those are part of rural people's lives anyway.
"So our rural communities, our small communities, will feel more comfortable coming to something like a literary festival because they're in these cosy, known venues already."
All children's events are free with more than 2500 book vouchers being given to primary-aged children in South Wairarapa, to spend at the festival or in local bookshops during the following week.
Olson said the initiative was exciting because it might lead to a child buying their first book.
"It's quite powerful and really exciting that we can help encourage and promote literacy in young children."
Tickets are available at eventfinda.co.nz and the programme of events is online at booktown.org.nz.