Analytics professionals can find useful techniques, inspiration, frameworks, and thought provoking ideas in these sources (includes Actual Books, podcasts, videos, blog posts, and other ephemera):
Turning Numbers into Knowledge - Mastering the art of of Problem Solving by Jonathan Garo Koomey (Author), John P Holdren (Foreword), October 1, 2017
Analytics: Use Data to Build a Better Startup Faster by Alistair Croll, Benjamin Yoskovitz, March 2013
Information Dashboard Design by Stephen Few
Statistics in Plain English by Timothy C. Urdan
Psychology of Intelligence Analysis by by Richards J. Heuer
The Big Book of Key Performance Indicators by Eric T. Peterson
Measuring the Digital World by Gary Angel
Linear Digressions - "a podcast about machine learning and data science"
Not so Standard Deviations - "the latest in data science and data analysis in academia and industry"
Partially derivative - "data, data science and general geekery"
Oreilly Data Show - "opportunities and techniques driving big data, data science, and AI"
DataCamp podcast - "industry and academic experts exploring the inner workings of the data industry"
Analytics Feed Analytics-feed.com collects analytics news into a single feed from all over the Internets, so that anyone who's interested in analytics can follow analytics news in one place
Da Vinci Tools by Stéphane Hamel Chrome extension - Google Analytics Power Tools
GTM Tools by Simo Ahava Google Sheets add-on
Launch and DTM Switch Chrome Extension