Hi there, "Think about" is more general - it's spending time thinking through an idea, or remembering something and considering a possibility. "Think of" usually involves something more specific - like thoughts about a specific person, memory, or you might say that you "think of" an idea. Hopefully this helps! Holly

"Think about" involves more mental effort and lasts longer than "think of". "Think of" is instantaneous. We think of someone for an instant. Then we are thinking about them if we continue to think about them. We think of an idea for an instant. After that, we may continue thinking about it. I just thought of something! Why don't we do this? Okay, let's think about it!

If you are a beginner, the best guidance is that there is usually no big difference. "of" is not committed to how much thinking and it could be momentary or intense, but "about" suggests the thinking was indeed more intense "I was thinking of you all day" "I am thinking of going to Spain next month" "I thought of how beautiful you were" All of these could be "about" or "of" and it is mostly a stylistic difference, because the basic notion is the same in the context. There are some cases where they are different. "I thought about a new approach" - means you heard about it and kept thinking about it "I thought of a new approach" - means you invented it and are telling us "Einstein thought of new ways to view the universe" - means he created new ideas "Einstein thought about new ways to view the universe" means he spent time pondering the subject "When I fell off my bicycle I thought of you" - I remembered it happened to you "When I fell off my bicycle I thought about you" - this suggests you started to spend time thinking about the person

I misread. 'Hey Graham, do you want to have a drink later on?' 'I'm a little tired, so I'll have a think about it, but I'll probably want to sleep instead.' 'Are you leaving for your trip to Berlin?' 'Yeah I'll be away for three weeks' 'Great, I'll be thinking of you!' - as in you're in my thoughts. You'll be wishing someone well, hoping they're having a good time, and it also denotes a little bit of luck. The act of being thought about, will bring good fortune. Holly has wrote a better answer than this, but I thought I would add in some key examples. Adding an extra bit of help might be that 'I'll have a think, and get back to you' is a nice common every day phrase meaning 'I'll think about the idea and give you an answer later on.'