Downloadable computer software featuring artificial intelligence for easy and consistent review of notes and highlights from PDF documents and the internet, organization of notes and highlights from PDF documents and the internet using authors and tags, and chapters, export and import of notes and highlights from PDF documents and the internet, summarizing webpages, PDF documents, and videos, sharing of notes and highlights from PDF documents and the internet with others, and visualizing learning progress with the knowledge graphs.; Providing online non-downloadable computer software platforms featuring artificial intelligence for easy and consistent review of notes and highlights from PDF documents and the internet, organization of notes and highlights from PDF documents and the internet using authors and tags, and chapters, export and import of notes and highlights from PDF documents and the internet, summarizing webpages, PDF documents, and videos, sharing of notes and highlights from PDF documents and the internet with others, and visualizing learning progress with the knowledge graphs.
