CSV files
Excel files
PDF files
XML files
JSON files
Databases and API's
Wide versus long data
Transposing data
Geographical data: vectors
Geographical data: rasters
Consulting metadata
Inspecting data
Standardising data
Matching data types
Cleaning data: dates
Dropping columns
Missing values and outliers
Cleaning data: tools
HTML and <img>
Image alt descriptions
SVG elements: text
SVG elements: geometric shapes
More advantages of SVG
Styling and CSS
Dynamic SVG
Accessing data of a dynamically generated visualisation
Canvas
Online graphics: tools
Tracing charts
Templates and themes
Theming charts
Visualisation layers
The margin convention
Fonts
Direct labelling
Text halos
Colour: RGB versus HSL
Apps versus libraries
Explanatory versus exploratory data visualisation
Microsoft Excel
Google Sheets
Adobe Illustrator
Datylon
Business intelligence tools
RAWGraphs
Datawrapper
Flourish
Highcharts
ggplot2
Python visualisation packages
Plotly
D3.js
Vega
Observable Plot
QGIS
Leaflet
The Chartmaker Directory