As the name implies this kind of magic involves calling upon the energies of the Moon. The different phases of the moon can be used to boost certain spells. Many cultures have believed in the power of the moon and many goddesses related to magic are associated with the moon.
New Moon
From the day of the new moon to three and a half days after. It helps with beginnings, romance, health and new jobs or business ventures.
Waxing Moon
From seven to fourteen day after the new moon. It helps with courage, success, love, luck, health, friendship and wealth.
Full Moon
From fourteen to seventeen and a half days after the new moon. It is a great time for divination and prophecy rituals. It is also a great time for boosting the power of rituals for love, knowledge or money.
Waning Moon
From three and a half to ten and a half days after the full moon. It is useful for banishing magic.
Information Source: http://paganlearning.com
Literary Sources
Wiccapedia
The Kaleidoscopic Path 