Start with the topic guide.
This Looker micro-course focuses on Data cleaning and transformations. The practice brief below is available while the full tutorial is prepared.
This is a learning outline. A complete worked tutorial has not been published for this topic yet.
Practice brief
Inspect evidence for data cleaning and transformations in Looker; explain the diagnosis and verify a proposed correction in a lab. Keep the exercise bounded and record the behavior supported by the chosen version.
Evidence to produce
Evidence log and reviewed diagnosis