Before getting into Thaumcraft you will need to have a few things in place:
- Explored the world
- Have a base of operations
- Healthy Supply of:
- Paper/Sugar Canes
- Collected a few crystals
- Collect as many as you can and try and find all 6 different types. A stack of each one is great.
These are the main things you will need to get started. The deeper you dive into Thaumcraft, the more materials you will require.