How do I access Quest Book ?

[i_r_jk]

I keep finding these notes. But can't figure out how or where to read them.
Best I can figure is they are in Quest Book where ya read codes. But have no idea how to access the Quest book.
Do I need to find a blueprint to make one?,or will I find a Quest Book?

[Anonymous Helper]

Press 't' to open it. The key to open it is shown on the right side of your quick bar.