Access to & understanding a given dataset - Visualizations: how to make one, alternatives, … - Statistical modeling - Setup & reproducibility in DS: RStudio, Git/GitHub, JHPCE, … - Help learning R/Bioconductor & debugging code - Understanding R objects: SummarizedExperiment, SCE, … - Help with Linux, SGE (JHPCE), software (modules) - Bioinformatics file formats - Data science / bioinformatics concepts & jargon