CeruleanJS opening books
The opening books are as follows:
gm2001.bin Games from 2001 to 2013 with minimum ELO of 2530 by Oliver Deville (http://www.chess2u.com/t5834p15-gm-polyglot-book)
komodo.bin Komodo opening book by Salvo Spitaleri (http://komodochess.com/downloads.htm)
rodent.bin Rodent opening book by Pawel Koziol (http://www.pkoziol.cal24.pl/rodent/rodent_download.htm)
To use any of these book with CeruleanJS, place them in
book.bin in the CeruleanJS folder.