Instruct: Classify Amazon reviews into positive or negative sentiment
Query: excellent content & format

This is a very good buy for anyone not having the paper version of these books yet. The presentation is excellent, you can chose different chunkung and picture sizes, full cross search, and the author did put pretty much effort in this version to add links and cross reverences within and across the two books. So all fits together fine. For the revievs on content you can check at the original books. I think all C++ programmers can benefit much of it, those starting, and experienced ones too.