New answers tagged information-graphics
Expanding on Scott's comment a bit... Here's why vector design applications like Adobe Illustrator (also, Corel Draw, Inkscape) are much much better suited for icon / pictogram design than raster / pixel design applications like Photoshop: Simple icons like these tend to be based on simple geometric shapes, lines and curves: You don't get any benefit ...
A great online solution, one that integrates well with Google Drive is Lucid Chart. There are paid plans, but it's mostly free. I've created tonnes of diagrams for it and this is a typical implementation.
yEd is good at this, is free and has Windows, Mac and Linux versions: http://www.yworks.com/en/products_yed_about.html
I was part of a university team to improve other researchers plots. Our team mainly used Matlab and Illustrator. Up to some point, Matlab does a better or efficient job on displaying basic elements in a plot, including adding axis labels, axis ticks, data lines and data dots. After some point of a plot improvement, Illustrator works better when it comes to ...
These small simplified images representing things are called pictograms (they're sometimes called icons but that also makes implications about how they are used). See also What do you call these infographic icons? which discusses a different style of the same thing. You can browse thousands and thousands of pictograms like that at the noun project, and ...
There's not really an 'effect' to speak of. These are just flat line art, as @Scott mentions. I can add some advice to stick to very simple shapes, a single colour and one single thickness for all your strokes. Be sure to round most of your corners and select a round end cap in the Stroke panel.
I'd forget Photoshop and stick to Illustrator. They are all simple lines. All you need is the pen tool.
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