I really appreciated the way Peter Langtangen handled this for his book
"Python Scripting for Computational Science": There is an encrypted PDF
for download for which you need a password like "Enter the first word on
page XXX".
Of course such a measure can still be worked around, but it is
sufficient barrier that the PDF will not easily spread around and the
protection is non-intrusive enough to allow people who purchased the
paperback to have the PDF for reference.
I personally enjoyed TPDL as the best read in a long time. It definitely
makes you stand out as a nerd if you mention this in smalltalk
conversations about enjoyable holiday reads... :-)
However, the book is pretty useless as reference now, because I
typically just carry around my notebook and never have TPDL at hand when
I would need it...
On 20/08/10 00:51, sergk wrote:
Despite word "download" being mentioned. What safari really provide,
is an "online version" of the book, not "electronic version".
When I've bought paperback TDPL, I was kinda hoping to read "bonus
book" on my kindle dx, leaving paperback book on my office desk as
promo for my colleagues and guests. Well, too good to be truth.
FWIW, I would still like to have a kindle version. Pdf is fine too.