Dear O ́Reilly,
Just bought the ebook "Head First Programming" which is in my opinion a great book. One thing I do not understand: why are those e-books in pdf? PDF is very bad scalable for ereaders. To read this book on m iRiver story HD I need almost an microscope ;-( Even with maximum zoom in.
the Head First series is limited to PDF format due to graphical limitations. The graphics in the book do not translate very well into non-graphically rich formats so we limit it to PDF's.
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Enjoy the books!
Customer Service Rep,