
Demon Asmoday is described in the Goetia and below you find several descriptions of this demon from different old Grimoiries:
Demon Asmoday:
Pseudomonarchia Daemonum
Sidonay or Asmoday is a great king. He is seen with three heads: first is like a bull, the second like a man, the third like a ram. He has a serpents tail.
He throws up flames out of his mouth and he walks on feet of a goose. Moreover, he rides upon an infernal dragon and carries a lance and a flag in his hand.
Asmoday is under the power of Amaymon. You must approach Asmoday and Amaymon with great respect and be very polite and humble in your petitions.
If you do not show respect, Asmoday and Amaymon will deceive you and turn all your actions into failures.
Asmoday gives the ring of Virtues. He teaches maths and geometry, astronomy, mechanics and all handicrafts. To all your demands, he answers truly and fully.
He makes you invincible, and shows you a source of income and guards it. Asmoday rules 72 legions of inferior spirits.
Johann Weyer, Pseudomonarchia Daemonum
Demon Asmoday:
other sources
According to the Goetia, Asmoday teaches maths, astronomy, geometry and all handicrafts. He makes you invincible and shows you the source of your income. Asmoday rules 72 legions of inferiors.
S. Connolly tells us among other information about Asmoday, that he can help us to become physically fit and mentally sharp.
Demon Asmoday:
how can he help you?
I have a video about all the Kings of Goetia. In this video I also tell about Asmoday and Amaymon, and how these two spirits taught me software.
Asmoday can teach you to work with any software and to design amazing graphics. The spells which I did some two years ago are still active and both Asmoday and Amaymon are still teaching me software.
Its only under the influence of Asmoday that I have been educating myself on the subject of cracking software code. I understood a lot about downloadable software, what it may contain that we should be aware of and how serial key generating programs work.
I also understood the dangers of such programs for the one who downloads them and also for the surroundings. In short, Asmoday can teach you technical stuff.
I have never summoned Asmoday with evil intentions to inflict harm upon someone. I had no need to do so. You can call upon Asmoday and Amaymon and ask them to help you:
to obtain money by selling your creativity
to learn technical stuff (make videos, design graphics, download software, install it, crack software codes, find serial keys that work, etc)
to build up your website and webshop
Demon Asmoday:
when to summon him?

When calling upon the Kings of the Goetia, I use the correspondences of Tiphareth for Thagirion (Tagaririm):
Ruling planet: Sun
Day: Sunday
Astrological hour: Sun
Paper seal colour: yellow
Metal seal: gold
Candle colour: yellow (gold)
Number: 6
Plant: Sunflower (use seeds)
Gem: Topaz
Summon Asmoday together with Amaymon during a Sunday. The moon should be waxing or full if you want to learn something technical from Asmoday.
My blog
All my free articles and videos on the subject of magick are available. Here is My blog.