You might have heard of terms like "genuine leather", "top grain" and "full grain", which refer to leathers obtained from different parts of animal hide. You might have also heard of the terms "full aniline" and "semi-aniline", which refer to the dyeing process. A combination of these factors broadly constitutes leather quality. This guide serves to explain what these terms actually mean, for you to make a more informed purchase decision (and no, the average salesman does not know).