I'm a student of a university in Japan. I'm enrolled in correspondance course. I'm a philosophy of science major. I need to study mathematics and physics basically.I think I need to study maths and physics or other subjects in English. I can barely understand them in Japanese because Japanese textbooks use too many difficult "kanji" to translate academic words and they don't have so clear description. When I checked some words with English dictionary for learners, I found that it is very clear and simple description. So, I thought ,perhaps, it is a good way to study these subjects in English. How do you think about my idea? Next question is a more concrete. I found a old book written in English about mathematics in a local library in a university. It deals with pre-algebra. Is it a correct type of mathematics to start to learn mathematics? Or if not, would you recommend some books for beginners? And would you advise me how I should go up stages of matrhematics step by step? I don't know how pupils and students from other country study mathematics or other subjects. So, I don't know which types of mathematics they begin to learn maths. Once I've got a good information from this site which recommend some books, but I found that I had enough money to buy it. At present,my purpose is to achieve A level in Cambridge International Examinations. I'm looking forward to hearing from you.