I support you. I have been getting a lot of help with my js knowledge through blogs even before writing the book. I was thinking of learning node for my pet project, but the node book I bought last year became a bit legacy, so while looking for a book again, I heard that a node.js textbook was being published, so I bought it as soon as it came out. There were some parts that were hard to understand just from the book, but I bought it because it was also uploaded as an Inflearn course. It's still in the beginning stages, but it's been very helpful for my understanding. I support and encourage zerocho's knowledge sharing.