The book contains lots of technical information. Almost anything related to numerical analysis is contained in this book.
However, this book has a very dry style. It was hard for me to learn from it. It contains small number of worked out examples. The style of presentation is too formal and hence this text is best used as a reference more than something a student can learn from.
I found many other books which was from me easier to read and learn from.
Again, this is a good book, but as a reference.
This was a really hard course for me. Too many theorems and proofs to learn. Our instructor Dr Lee was very good and knew the material very well, but for me this was still a hard because it contained more real math than I am used to in the engineering courses I took before (but again, this is an applied math course, so what did I expect?)