I'm new to the topic and I want to have a first and broad overview on questions concerning: What is an artificial neural network? What can they do? How do they work? What types of ANNs do exist? Practical examples would also be very good.
I'd definitely highly recommend to start with http://deeplearningbook.org/. author={Ian Goodfellow and Yoshua Bengio and Aaron Courville}, 3 well known geniuses in the Deep Learning area. Hard copy or eBook available on Amazon.