Introduction to Automata Theory, Languages, and Computation 3rd Edition

Too much abstractions, very little practical examples. The theory goes on and on forever. If you got a good professor, he/she should try to give out as many examples as possible. The homework is good but should provide more instructions at the beginning. Overall, a good book with some flaws.Automata theory should not be that hard.

for class

I had to use this for a Formal Models of Computation class last semester. It's okay but can be hard to follow. It is often hard to learn from the examples. The formalism and proof gets in the way of intuition. It would make a better 2nd book or reference than a first book on the subject. I supplemented the book with Sipser and found that a much better book for learning from. Hopcroft (this book) is more mathematical in nature but the explanation is harder to follow. If you have a choice, go with Sipser.As near as I can tell, the big improvement in the 3rd edition over the 2nd is the inclusion of some online practice problems. If your class isn't going to be using these, can you save money by going with the older copy.

For my Master Degree Studies on Computer Science, this book has been very helpful for an Automata Theory Course. Maybe there are a couple of chapters that need more understanding than others, but overall if you are interested on this field, this book is probably a good source of information in order to plan my thesis in a near future.Most of my classmates purchased the First Edition Used and according to them the notes posted on some of those copies were nice.Overall this book is a must have for every developer out there that wants to become a researcher in Math with Computer Science!!!

I bought the green paperback version without realizing it was the international version and now I can't use it for homework because the problems are different.

Used it for a college class.

Good

This is a classic book. Precise, clear, well written.However, in this "international" edition, some of the examples and corresponding images have errors. Given the complexity of the subject, looking at the wrong figure is extremely confusing.

This is an Indian print of this classic text. The quality of the paper/printing is not great, but certainly OK. And, of course, this version is MUCH cheaper than the normal version.The book itself is written in a style that spells out the proofs quite patiently - it's quite easy to follow in comparison with other books I have on the same subject.

This edition of this great book have almost all the images wrong. I have read it until page 70 and I lost most of the time trying to understand the examples until I realize, comparing with regular editions, that I was reading descriptions that don't have nothing to do with the images.....

This subject is quite complicated in itself so I didn't rate it 3 start. Covers most of the basic topics but yeah to follow along the writing is quite a challenge. Be ready to do a focused reading. You cannot read this book as you are skimming it as a story. Automate theory forces you to think about what's written. I would have preferred a bit more bulleted approach as it is too thorough to begin with. It should be like a flow from easy to hard. Instead it is like from mediocre to hard.

Pearson's printing quality of its recent books is beyond superlatives! It was so awesome I had to return it.PS: If a reader is simply aiming for understanding concepts of Computation Theory - Sipser has done it vastly better than Ullman in this regard. Rest aside, this book is also very good. But the price tag for a teeny-tiny book with pathetic page quality made me question my purchase.

Do not get influenced by negative reviews. The print quality of the book is good. No issues with diagrams too. I purchased the "Pearson" published book. There is no need to say anything about the authors or the book itself -any computer science student will know