No
It was simply another self-help book.
Seriously, if someone really wants to kill themselves, they dont need a handbook.
They'll find a way. People have been suiciding since the beginning of time. You cant blame a book.
The borderline personalities, that manipulative lot, would relish a how-to book. These are the folks you have to worry about because they thrive on crisis and try to create situations where people rally around them to "prove" their love and affection. Borderlines often take the attention seeking thing too far and end up dead (or sleeping on the floor like my teenaged friend, which will get them a couple weeks on an inpatient unit where they get all the attention they want), but they didnt get this way from reading a how-to book.