Plastics are the most common aquatic litter material across all environments. The most common source was take-out items like plastic bags and food wrappers, as shown in these horizontal 100% stacked bar charts. Aquatic litter data are from "Morales-Caselles, C., Viejo, J., Martí, E. et al. An inshore–offshore sorting system revealed from global classification of ocean […]
Author Archive for: David
About David Goldstein
David Goldstein is an expert in building data-driven business charts. As the President of Mekko Graphics, he is responsible for this PowerPoint add-in that is used by the top strategy consultants. David heads Mekko Graphics’ sales and marketing efforts and works closely with the product and customer support teams.
He works with Mekko Graphic’s customers to help them choose the best way to present their data. David has developed webinars, presentations and toolkits to illustrate the best practice for data-driven charting.
David is a former Harvard Business School professor who has spent his entire career helping individuals and organizations find the best way to analyze and present data. As a researcher, he studied how managers use ‘Big Data’ to create and tell stories. He taught Information Technology and Accounting courses at Harvard Business School, IT Management at MIT Sloan, and IT, Business Strategy, Marketing and Organizational Behavior at Boston University.
As the Co-founder and CEO of Knowledge Management Associates (KMA), he led the development of the Mekko Graphics product. In addition, he has worked with professional services clients on multi-million dollar consulting engagements. David successfully pivoted KMA from an application development firm to a SharePoint firm, before focusing on the Mekko Graphics product.
David has been an active member of the Boston chapter of SIM (Society for Information Management) and has served on its Board as a roundtable chair, program chair and marketing chair.
He holds a PhD degree from MIT Sloan, Master’s degrees in Engineering and Applied Mathematics (Computer Science) from Harvard, and a Bachelor of Science degree in Mathematics (with a Computer Science minor) from McGill University. He lives and works in the Boston area.
Renewable capacity additions in 2020 expanded by more than 45% from 2019, with growth in both wind and solar. China accounted for 72GW of the 86GW of incremental added capacity, as shown in these waterfall charts. Renewable capacity data from Renewable Energy Market Update 2021. Renewable Capacity Additions by Technology and by Region in Two […]
The number of social media users worldwide has grown 61% from 2016-2020, while average time spent per user per day has grown only 13%, as shown in these bar charts with growth lines and data rows. Growth rate for number of users and time spent has decreased over the past few years. Year over year […]
Most of the 3+ billion internet unconnected are in Asia and Africa. Regional adoption rates vary widely, from 71% in Eastern Asia to 24% in Eastern Africa, as shown in this 100% stacked bar chart with data column. Data on the internet unconnected come from Digital 2021: Global Overview Report. Internet Unconnected in a 100% […]
PC shipments grew 55% year over year during the first quarter of 2021. Apple and Acer had the highest growth rates, while Dell lagged its major competitors, as shown in this bar-mekko chart with data rows and average line. PC shipments data were compiled by IDC. PC Shipments in a Bar Mekko Chart with Data […]
Southeast, Far West and Mideast each account for about 20% of US GDP. California, Texas, New York and Florida are the biggest contributors, as shown in this Marimekko chart. US GDP data are from Bureau of Economic Analysis. US GDP by State in Marimekko Chart with Data Row How I Made this US GDP Marimekko […]
Netflix, Amazon Prime Video and Spotify have the most subscribers among the streaming services. Video services are more popular than audio, as shown in this horizontal bar chart with data column. While most of the largest services are based in the US, several are based in Europe and Asia, including Spotify, Tencent, and Alt Balaji. […]
Over the last decade, U.S. adults increased their time spent on mobile devices by 460%, from 45 to 252 minutes per day. Time spent on radio, television and magazines all declined, as shown in this 100% stacked bar chart. The media consumption data originally appeared in Recode and was reproduced with a data table in […]
After 5 years of decline, the pandemic spurred a 14% increase in tablet shipments in 2020, as shown in the bar chart on the left. Samsung and Lenovo benefited most, growing 44 and 64% respectively, as shown in the stacked bar chart with CAGR column on the right. Tablet shipments data were compiled by IDC. […]
Amazon market share leads the $909B ecommerce market at 40% and it is also among the top 3 in digital advertising, online grocery and cloud computing, as shown in this Marimekko chart. Market share data were presented in the Wall Street Journal. Amazon Market Share in a Marimekko Chart with Data Row How I Made […]
!Exciting News: Mekko Graphics joins the insightsoftware family. Read more