I've got a printout of the Arabic alphabet, reproduced below.
The trouble is when I look at certain words, I can't make out what letters are in there. For example, the Arabic word for camel is جمل.
But I can't find that first letter in my alphabet sheet. It doesn't resemble any of the letters.
So, are there "hidden" letters, or perhaps, are some letters shaped differently in different situations? Are there upper/lower case? What's going on?