Magick is all about energy. Therefore, it is vitally important that the aspiring Magick-user spend some time learning how to work with and direct her own energy and that of the world around her. These techniques are useful for just about any magickal system from High Magick to Low Magick to divination. All magick deals with energy, so even if you haven't decided on what magickal system you wish to work in, this section will be of use to you. In fact, even if you never do a bit of magick, it is useful to learn energy techniques to enhance your own personal health and well-being.
One book I have found very useful for learning the basics of energy work is You Are Psychic: The Art of Clairvoyant Reading & Healing. Although it is specifically about psychic development, not magick, the techniques therein will prove incredibly useful to any magick-user.