The Toefl exam helps you to cope in an academic environment. In other words if you wish to study abroad, need to prove your language skills to attain a scholarship, participate in research and so on you may need to pass this exam. Your level of English should be a fairly strong Intermediate in order to deal with tasks such as reading a popular science article in the field of biology, history, astronomy or even architecture. You do not need in depth knowledge, however, you have to be able to read in an analytical way and answer the quiz following the text. Listening is the second task, where taking notes is the key skill. Naturally, there is a Speaking Section with four tasks and finally two essays.
Why do I like Toefl? Preparing for this exam gives you a set of skills that can be put into practice in a real academic situation and this knowledge will prove to be a real asset when you are thrown in at the deep end. Last but not least, the topics are very interesting for anybody who is interested in learning about our world.