Welcome @Arexu07 It is a rule of this forum for all new members to properly introduce themselves, so please click the link below and tell us about yourself and any experience you may have in magick, such as what you practice, how long you have practiced, areas of interest, etc:
Also, please use the little magnifying glass in the upper right. All the information on how to evoke is available already. Just type in “evocation guide” and click the third option that comes up.