I’d happily read George Monbiot’s writing on pretty much any subject — Heat, The Age of Consent and Feral are all totally compelling reads (Feral in particular).
On career advice, Monbiot doesn’t let down. Whilst the advice is tailored to those looking to get into journalism, the approaches that Monbiot suggests can be applied to any number of other careers. He talks about sacrifices that must be made in order to maintain freedom — whilst you might earn less outside of corporate life, you’re far less constrained.
Just give it a read.