How long is a books copyright protected?

New works are protected for the life of the author plus 50 years in most countries; the US and a few others have extended this to 70 years.

New works are protected for the life of the author plus 50 years in most countries; the US and a few others have extended this to 70 years.

Copyright protection generally extends to the end of the calendar year, 70 years past the death of the author.

endures for a term consisting of the life of the author and 70 years after the author's death and in the case of work-for-hire the shorter of 95 years from publication, or 120 years from creation.

Copyright protection is automatic and instantaneous, as soon as work of sufficient originality is "fixed in a tangible medium, perceptible to human eye, machine reader or other device". It isn't...