Both Catherine Y. and Starr Casas hold classes, Starr Casas I recommend because her classes are hands on conjure. These two are the big names.Search for oldstyleconjure and Hoodoo in theory and practice in Google. This is a good start for reading. Books by Starr Casas and Catherin Y. are also available and I recommend. Then, there is also the good old Bible to read. Avoid the author Denis Alvarado.
As for Vodou, there are books on the subject. The highly recommended ones are Mama Lola: A Vodou Priestess in Brooklyn ,Divine Horsemen: The Living Gods of Haiti, a nd Mambo Chita Tann's books. These are good for getting a feel for the religion. Also, searching for "Houngan Matt's Blog" is a great source. These are academic approaches, not for practicing the religion. If you want to practice the religion, a leson, card reading, is needed.It is really cheap, 50 dollars. Houngan Matt and Mambo Chita Tann do these readings.