Not covered by this book

• Modelling: Super important for DS, but too big for this book
  • Tidy Modelling with R by Max Kuhn & Julia Silge (book club!)
• Big data: Problem-specific
  • If you work with big data, will want to learn other tools
  • {sparklyr} builds on principles in this book
• Other programming languages: (Python, Julia, etc.)
  • Master 1 tool at a time
  • Maybe go on to other tools later