While power-points don't have a distinct, rather formal style of preparing, it has emerged that universities & colleges are increasingly requiring students to prepare power-points at some point during their courses strictly in APA style. I have done several APA power-point slides. You can either send me the content and let me do the slides for you or you can order both content writing and preparation of slides (usually a higher fee).
Any amount of slides
I design impressive slides with pictures if needed.