There are various online resources available to learn digital analytics like online video tutorials, articles, e-books and so on. Instead of reading content I would suggest you to watch online video tutorials for better understanding of concepts. For that I would like to recommend you to check out this video by experts -
Along with that if you are looking for training with certification I would like to suggest you to go for Advanced Certification in Digital Marketing and Analytics offered by Intellipaat which is specially designed in collaboration with CCE IIT Madras. Become a certified digital analytics expert with the help of Intellipaat training.