September 17, 2026 · Vistelio
A practical tutorial on building maps in Looker: the location, zipcode and region dimension types, distance measures, map_layer and custom TopoJSON layers, BigQuery GEOGRAPHY columns, and the performance and permission traps that make Looker maps slow or blank.
Read moreSeptember 16, 2026
A practical guide to drill design in LookML: drill_fields on dimensions and measures, drill sets, controlling the drill overlay with link and html, Liquid-powered drill menus, drill_fields on explores and dashboards, and how to keep drills fast and permission-safe.
Read moreSeptember 9, 2026 · Vistelio
A practical guide to LookML dashboards: when to use them instead of user-defined dashboards, dashboard file syntax and the listen block, converting existing UDDs with Get LookML, extends for regional variants, and using the Content Validator as a deployment gate.
Read moreSeptember 9, 2026 · Vistelio
Dashboards are read-only. The Extension Framework lets you ship a real React app inside Looker: this tutorial covers scaffolding, the manifest entitlements, the API 4.0 SDK, Looker Components, safe write-back via fetchProxy and Actions, and deploying the bundle through Git.
Read moreAugust 25, 2026
Custom visualizations in Looker, done right: color collections and themes (there is no color_palette LookML parameter), Liquid conditional formatting with value and rendered_value, and a working custom visualization built on the Visualization API and installed through Admin > Platform > Visualizations or the Marketplace.
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