I'm not sure I understand the online sales order issues - I've gotten the print books I ordered in a timely manner and the e-books right away. It's true that not all books are written by native English-speakers and sometimes that shows, but I haven't had a hard time following the content. Maybe previewing and checking sample pages of the individual books is a good idea before buying. Publishers have used "bundle deals" forever to move books that otherwise haven't been selling - that's not a Packt thing. To each their own, I've been happy.
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