The Worflow4Metabolomics 2015 course (W4M course 2015) will take place at the ABiMS bioinformatics institute (Roscoff, France) on Sept. 21st-25th 2015. This one-week training session is intended for MS and NMR experimenters wishing to learn the functionalities from the W4M resource. It will include an initiation to the Galaxy environment, followed by dedicated practical sessions covering the available modules for data preprocessing, statistical analysis, and annotation. Finally, a tutoring part will enable each participant to analyse its own dataset. Presentations will be given in French but course materials will be in English.Pre-registration deadline: May 8th 2015.