Easier Methods for Evoking Options

hello all, i was wondering if i can ise a magickal system that worked in summoning other spirits, and use it to summon for e.g the spirits in Konstantinos book, or the ones from Practice of magickal evocation . thanx
p.s almost every where i go, the name Vassago keeps turning up, and how some people didnt even go thru full ritual to call Vassago, what are simpler ways to call such beings .?

Thanx

there are no easy methods-at least for the first evocations...
After you manage a difficult evocation you may ask the spirit to give you a word of power so you can call him instantly...
but first you have to do the difficult one...