If you are involved in any work requiring creative inspiration or craftsmanship, the Eight of Pentacles is a very positive card. This is especially true if you are using skills you are still trying to master. This is as likely to be a hobby as your primary work. Unlike most of the suit, financial gain is not necessarily indicated, but a spiritual reward is. This is also not a guarantee, but rather a suggestion that if you are prudent and organized in your attempts, success is the likelier outcome.
To get the full traditional meaning and interpreation of Eight Of Pentacles, I suggest you visit Trusted Tarot and their Eight Of Pentacles page.