The Organizing Committees of the 18th International Conference on Luminescence invite the worldwide community of luminescence research to participate of the ICL 2017. The conference will be held at the Poeta Ronaldo Cunha Lima Convention Center in João Pessoa, Paraíba State- Brazil, from August 27th to September 1st 2017. Registration is now open, and all abstracts must be submitted until April 5th, 2017. More information access the site: https://icl2017br.com/.