Rethinking Life and Death: The Collapse of our Traditional Ethics by Peter Singer

Excellent, accessible and usefully structured by mixing narrative with argument, and then restating implications/conclusions again.
Main things: Are omissions of action that different than overt actions?  By what metric should we judge 'being alive' and which capacities should be valued. As usual, comparisons to animals are initially surprising but logical coherent (if still emotionally problematic).
Highly recommended.