Recent content by pkkm

  1. P

    Which direction to explore, books to buy for self-learning (high school student)

    Thank you for your reply. I've bought some of the books mentioned.
  2. P

    Which direction to explore, books to buy for self-learning (high school student)

    I'm a Polish high school student (in Poland education is like this: preschool → primary school → middle school → high school (entrance age 16) → graduate school (entrance age 19~20)). My school is very good (in top 2.2% in Poland). I don't have problems with mathematics in school, but I have the...