This article discusses the use of digital EEG analysis to detect seizures and other brain conditions from EEG data. It explains the three main steps of pre-processing, feature extraction, and classification that are used to identify patterns related to seizures. It also introduces the 3D deep convolution auto-encoder (3D-DCAE) which is used to detect epileptic seizures from EEG recordings. The auto-encoder is trained in a supervised way to learn the best features from the EEG signals and summarize them into a simple, low-dimensional representation.