Finally all e book r here

This post is 4 yesterday and 2day, yesterday and 2day we receive all e book both of e subject which r circuit design n computer networking. All e book r quite heavy n all alot of theory 2 study n luckily one exam only which is CN. I heard e cn is more expensive then another book b4 collectin it must pay a least $3.40 n total around $20 plus. I try my best to get A this 4 exam n tat is all bout 2day.