Hello, I'v just finshed with ebook Teach yourself C in 21 days, and need some advices what to learn next. Also I'm interesting in programs taht do some communication wuith serial port but not very complex. So if you have some advices or know where I can get Teach yourself advanced C which was recommended in previous book for free, because it is practicaly immposibile to buy it from where I live, I'd really appricated.
Cheers