I've long been a fan of Gliffy, a fantastic online diagram tool that's like Microsoft Vizio in your browser, only free. Now comes Best4c, a similar Web-based tool, and I think I like it even better.

Lovely Charts is a free web-based tool for creating flow charts, site maps, network diagrams, and other visualizations with a drag-and-drop interface and a look somewhat upscale from black-line boxes ...

This post recommends using Trellis plots instead of 3D bar charts for three-dimensional (three variable) data. In Winner of the Bad Graph Contest Announced, I promised to present alternatives to Excel ...

For anyone needing to create a diagram, flow chart, business drawing, or similar image, the go-to tool is usually Microsoft Visio. But why spend money on software when Lovely Charts works the same ...

Have you ever tried to make a flowchart, or any kind of diagram for that matter, using image editing software or a word processor's embedded tools? It generally doesn't go well, which is why there's ...

Abstract As a continuation of the study of cover-incomparability graphs of posets (C-I graphs), the notion of 2-colored diagrams is introduced and used in characterizations of posets whose C-I graphs ...