I am fairly new to the field of linguistics and am looking for a book as a fairly concise basic introduction to computational linguistics (I already have some computer science background). What is a good book to read in this area for a general introduction to the field?
Markus Dickinson, Chris Brew & Detmar Meurers (2013), Language and Computers, should be what you're looking for.
A rather more extensive classic for a second textbook is Daniel Jurafsky & James H. Martin (2014), Speech and Language Processing.
If you want something more hands-on you could also work through the guide to an NLP toolkit, for beginners specifically NLTK comes to mind.