Both psychology and pedagogy are national unified examinations, but the difficulty is very different. The employment prospect of psychology is not good, but the postgraduate entrance examination is very popular. The enrollment scale of colleges and universities is much lower than that of pedagogy, and employment may not be highly educated. If you have a good memory, or if you are really interested in pedagogy, it is not difficult. Of course, it is not difficult to rule out several famous schools like Beijing Normal University and China Normal University. If you just start preparing for this year's psychology graduate students, it is unrealistic to go to a slightly better school. We are senior students majoring in psychology, and generally review for nearly August and September, and the enrollment ratio is not large.
Library management is not a unified examination, and every school proposition is different. Generally speaking, it is two specialized courses, which are much easier than pedagogy and psychology (six in psychology and five in pedagogy), and the prospect is not very clear.
I hope I can help you. Make a decision after weighing. You can send me a text message if you have any questions about the psychology postgraduate entrance examination.