“80,000 Hours”, because not only does it teach you something about wealth, humanism and fulfilling careers, it also highlights imminent dangers that receive little (scientific/regulatory) attention and points out that everyone can do something without being rich or a genius.

Although I somewhat dislike their frequent measure of ‘impact’ in terms of money, the book puts quite a few things into perspective, and I can accept that you need to quantify things to do so. I particularly like that they encourage you to think about problems from different angles, and them pointing out that you can have a very real impact on the overall wellbeing of any living creature, pretty no matter what you do.