Ianassa has been running for fourteen years. Leonie first studied Geography at UCL before moving onto millinery & dressmaking at London College of Fashion. 

Exhibitions have been held at the Stokers Gallery in Wiltshire, the Art College in Esher, Proud Gallery in Camden, Juju in Chelsea, & clubs within London. Past award ceremonies include the Radical Designers Awards in 2010 & 2011. 

Iannassa has been involved in fundraising through London fashion shows for children charities & London Family TV.

Leonie also has written regularly for the lifestyle section of London financial news website, Here Is The City & blogs for Independent Fashion Bloggers. 

Leonies' mentors include well-established international designers from Fashion week such as Victoria Grant. Catwalk shows have included accessories complimenting Nico Didonna & Sienna Miller and her sisters label Twenty8Twelve from 2008 - 2016.