Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great book

Fives stars is a rating I've only given to Endless Summer. This book is an extensive volume on J2ME MIDP 2 and I highly recommend it to anyone interested in MIDP 2 development. Less than a fifth of the book focuses exclusively on Symbian but the detailed contextual API info adds significant value over some other books I've reviewed on J2ME that don't cover optional packages or simply 'mention' less-used packages without explaining how they are used. It would only be perfect if it were a bit more thorough covering more packages in greater detail- but that's what Sun's specs are for anyway. Enjoy.