Yeah I knew about the open book vs closed, its the only way to identify if you read the book or not and I usually check those books in the last tab to see what I'm missing from those sets.If you find a schematic / book then there is a symbol in the upper left corner. When the symbol is a closed book then you do not know the schematic yet. When it is an open book you have already learned it.
An overview of the books can be found in the skill tree in the last tab. There is no such overview for the schematics but you can search for the corresponding item in the crafting menu.
Yeah could do that I suppose, thanksyou can press f1, type cm and search for schematics, so you can see what you have already read or not