Xmen comics on sale on google play

Never been into comics before, but since they're on sale, thought I might try it out. Out of the selection [here](https://play.google.com/store/books/collection/promotion_1001f9d_marvel_xmen_apocalypse?pcampaignid=V-2_TYPE-StratPromo_LANG-En_GEO-Us_CAMP-10009663_DATE-20160527_MSG-100016328_SUBJ-Books_LOC-2_MOD-text_CORP-Books_SLOT-CTA), which one would you recommend for a beginner?