Literature aided the anti-slavery movement by spreading the word of slavery and why it should come to an end. Then abolitionist began spreading the word by writing book, newspaper, and articles. A lot of people read them and it helped the movement. <span />
Where in the world did you here this from
To explain the "no west" comment, in 1812 the American "west" only reached as far as the Mississippi River.
The northern states were heavily involved in international trade, having the ports and ship building yards. The men who sailed on those ships were likewise mostly from the north and were the ones being impressed into the British navy. The agrarian south's interests lay entirely in the production of tobacco, cotton, sugar, sorghum and a few other large cash crops. The commerce was mostly within America and they had little interest in shipping issues.