In user interfaces, a spinner is a normal indicator of thinking or loading. However, the modern web is often build from blocks that could be loading independently

This principle seems obvious, but there are too many interfaces that violate it. Thus, a blog post

Here is my talk from FDConf, Minsk about feedback in the user interface

A slider is a simple user interface control where you adjust some value by dragging a handle in a groove

Ilya is of that rare kind of designers that seek to find solutions to problems instead of matching colors and shadows

Immediate feedback is one of the core principles of good user interface design. But what if the data is unavailable for the feedback?