The Complete Book of Half-Elves

From the introduction:

The elves and humans have always had dealings with each other. Many have had physical or emotional feelings for each other as well. This has caused a cross-breed with both races known as the half-elf.

The half-elf is often an outcast in both societies. In some circumstances, this has led them seclusion, while in others, it has led to pity. Many elves see half-elves as abominations. Humans tend to dislike that which is different from themselves. Some half-elves have gone so far as to create their own communities...