I'd hardly call these following books published by Llewellyn Publications a joke:

The Tree of Life
The Golden Dawn
A Garden of Pomegranates
The Middle Pillar
The True Art of Healing
The Complete Golden Dawn System of Magic etc. etc. etc.
(All by Israel Regardie a joke to you? I guess it depends on one's sense of humour.)

Nor would I say these are a "joke":

Crystal Medicine by Marguerite Elsbeth
The Craft by Dorothy Morrison
Sexual Alchemy by Donald Tyson
The Goddess Path by Patricia Monaghan
Magic of the Qabalah by Trobe
Buckland's Complete book of Witchcraft by Raymond Buckland
Animal Speak by Ted Andrews
Tarot Shadow work by Christine Sette
Tarot Reversals by Mary K. Greer
Many lives many Masters, Only Love is real, Messages from the Masters, all three by Dr. Brian Weiss.
All of Elizabeth Clare Prophet's books.

These are a small selection of Llewellyn's books I own, and they are everything but a joke.

Another great publishing house is Piatkus and come to think of it, I have quite a few released by Shambala too, marvelous books!