The XXX Canary Islands Winter School of Astrophysics, organized by the Instituto de Astrofísica de Canarias (IAC), focusses on Big Data Analysis in Astronomy. The School, to be held in San Cristobal de La Laguna (Tenerife, Spain) from 4 to 10 November 2018, will admit around 60-70 PhD students and young Post-Docs. In a relaxed environment, the School will give participants the opportunity to learn from world-renowned specialists about the techniques used in Astronomy in the analysis of Big Data. Participants of the Winter School will have the opportunity to highlight their current work by presenting a poster. The duration of the school, including the visits to the observatories, is equivalent to a total of 30 hours (3.0 academic credits). Deadline for both the Registration and Applications is 17th June 2018.