Skeuomorphism can be described as a style that uses elements that mimic the things we are using in the real world for the same purposes. The most common example is a trash bin icon for deleted files.
Skeuomorphism appeared in the 1980s in Apple interfaces. It was based on the idea of an intuitive interface that should consist of the elements that remind the users of real objects.
It decreased its popularity because of the performance: high-resolution images and details become too hard to process with poor internet connection and designers came up with something fresh as flat design. Today neumorphism is a hot UI trend that can be considered using in simple interfaces that are not overloaded with details.
There are few neumorphism principles that you should keep in mind:
These are the steps you may follow for creating neumorphic design:
Here is the quote by Donald A. Norman taken from his book ‘The Design of Everyday Things’.