# Session 2: Data Demonstrations

Welcome back to Making Sense of Maps and Data!

# In this session, we will

• dive deeper into different types of data
• learn about how the geometry of spatial data is connected to the shape of the real world ("projections")
• go over the concept of how to relate spatial data and attributes ("joining" data)
• review some common file types you might encounter when making a map
• have a closer look at the LMEC Public Data Portal and learn about metadata

# From last time

In the last session, we...

• introduced the basics of maps and data
• discussed the differences between maps and the data that underly them
• discussed the conscious and unconscious biases engrained in the maps we view and create

# Key Terms

• join
• projection
• coordinates
• identifier
• Shapefile
• GeoJSON

# Goals of this session

At the end of this less, you'll be able to:

• Explain what is needed in order to bring data about space (geometry) together with data about what's happening in those spaces (attributes)
• Identify the most common types of file formats used in maps
• Understand the difference between data and metadata