Amy Cesal put together (1) this great overview of style guides for data visualization practice. Moreover, in the original tweet, Amy refers to other great repositories such as (2) this PolicyViz one and (3) this humongous one by Adele.

Amy’s list includes many references to the best practices used by some of the leading data journalism companies, such as the BBC, or professional data companies like Salesforce and IBM.

As I’m worried that this great repository may not stand the test of time on the current Google Docs location, here are the base URLs once more:

URL of guidelines Company name
https://sunlightfoundation.com/2014/03/12/datavizguide Sunlight Foundation
https://cfpb.github.io/design-manual/data-visualization/data-visualization.htmlConsumer Financial Protection Bureau
https://knightcenter.utexas.edu/mooc/file/tdmn_graphics.pdfDallas Morning News
https://urbaninstitute.github.io/graphics-styleguide/The Urban Institute
http://code.minnpost.com/minnpost-styles/MinnPost
https://public.tableau.com/profile/bbc.audiences#!/vizhome/BBCAudiencesTableauStyleGuide/HelloBBC Audiences
https://www.ibm.com/design/v1/language/experience/data-visualization/IBM
https://style.ons.gov.uk/category/data-visualisation/Office for National Statistics
https://www.ibcs.com/standardsInternational Business Communication Standards (IBCS®)
https://data.london.gov.uk/blog/city-intelligence-data-design-guidelines/London City Intelligence
https://www.bbc.co.uk/gel/guidelines/how-to-design-infographicsBBC
https://polaris.shopify.com/design/data-visualizationstShopify
https://ux.opower.com/opattern/how-to-charts.htmlOpower
https://www.consults-iot.comConsults-IoT.Com LLP
https://ux.mailchimp.com/patterns/dataMailChimp
https://material.io/design/communication/data-visualization.htmlGoogle- Material Design
https://lightningdesignsystem.com/guidelines/charts/Salesforce
https://github.com/glosophy/CatoDataVizGuidelines/blob/master/PocketStyleBook.pdfCato Institute
https://bbc.github.io/rcookbook/BBC
https://docs.microsoft.com/en-us/office/dev/add-ins/design/data-visualization-guidelinesMicrosoft
https://www.interaction-design.org/literature/book/the-encyclopedia-of-human-computer-interaction-2nd-ed/data-visualization-for-human-perceptionACI

If you have any resources or style guides to contribute to Amy’s list, you can do so via this link.