Tableau lessons
19 lessons across 7 tracks, each ending with a short self-check. Work through a track in order, or jump to whatever you're stuck on.
19lessons
170mtotal
7tracks
38checks
Foundations
How Tableau thinks about data before you build anything.
The Tableau Desktop interfaceWhere everything lives: the Data pane, shelves, Marks card, and Show Me.Dimensions vs. measuresThe single most important distinction in Tableau, and why fields are colour-coded.Discrete vs. continuous fieldsWhy the same field can produce headers or an axis, and when to switch.Tableau file typesWhat .twb, .twbx, .tds, .tdsx and .hyper each hold, and which to send someone.
Connecting & modeling
Getting data in, shaped correctly, and joined the right way.
JoinsInner, left, right and full outer joins — and the duplication trap.Data blendingCombining separate data sources on a shared dimension, and why it is not a join.Extracts vs. live connectionsWhen to snapshot your data and when to query it directly.Filters and the order of operationsWhy your filter did not do what you expected — the pipeline that governs everything.
Calculations
From basic calculated fields to level of detail expressions.
Calculated fieldsRow-level vs. aggregate calculations, and the error that trips everyone up.Level of detail expressionsFIXED, INCLUDE and EXCLUDE — computing at a granularity other than the view.Table calculationsRunning totals, moving averages, and the addressing/partitioning model.ParametersUser-controlled variables, and the swap patterns that make dashboards feel interactive.
Charts & dashboards
Building views people can actually read.
Sharing & Server
Publishing, permissions, and keeping data fresh.
Performance
Making slow workbooks fast.