Few authors who manage to find an agent and then a publisher or, lacking that, the funds to self-publish, find book sales a source of income substantial enough to provide for a single person, let alone two.

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For programmers, the perfect book is a source of reference, that provides examples and acts as a stepping-stone that raises you to the next level.

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The most authoritative source for such information is a book which is available on Amazon called The Reliance of the Traveler, A Classic Manual of Islamic Sacred Law .

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