There are a couple of nice photo books about Nevis, including a handsome one called 'Nevis, Queen of the Caribbean' by Deborah Lellouch. There is also a fair amount of information on Nevis in travel guides such as 'Antigua, Barbuda, St. Kitts & Nevis Alive!' by P. Permente and J. Bigley, and there are of course many more accounts of Nevis within larger popular travel guides to the Caribbean. 

The photo shows some books for sale in the small museum shop of the Museum of Nevis History, at the Alexander Hamilton House, in Charlestown, the capital of Nevis.

As for on-line literature, the Nevis Tourism Authority has a really excellent website at: http://www.nevisisland.com and a private individual who fell in love with Nevis has put a lot of work into his website: www.nevis1.com.

A well-researched and well-written history of Nevis, which can be ordered over the web or bought on the island is Swords, Ships, and Sugar by Vince Hubbard . The author, who still resides on Nevis, writes in a very lively style, and has managed to unearth many entertaining stories from Nevis' past, for example: which notorious pirate got his start here?  Few people know that the first U.S. Naval battle was fought off the coast of Nevis.  Not many people even know that Nevis was where Alexander Hamilton was born and spent a large part of his childhood.