It's not going to be possible to knit a 'simple' cardigan in the round. When you knit a sweater in the round, it's all one piece, all the way around. To make a cardigan truly in the round, you need extra 'steek' stitches which you would cut later. Not a good project for a first sweater.
You can make a cardigan where the back and two sides are knit as one piece to avoid seaming and then split for the sleeves.
"Trust the pattern!"
Time flies like an arrow, but fruit flies like a banana.
Hop aboard while we follow the cloud-covered van of knitting harmony, man!! Woooo!! --Hedgehog
IngridKH on Ravelry