From the introduction:
Characters for Fantasy Hero are among the most creative and most variable in any game. Not limited to any specific occupations or stereotypes, the choices are limitless. However, this very flexibility and lack of structure can be somewhat daunting.
Hero System is fairly generic, which means that the way to make a character is the same in every game. All the information needed to make a basic character for Fantasy Hero is in the Hero System hardcover rules but for the Jolrhos fantasy campaign, you’ll want this book.