Physical Chemistry: Quanta, Matter, and Change 2nd edition takes an exciting and innovative molecular approach to the teaching of physical chemistry. The text focuses on our understanding of the properties of matter at the molecular level, and how these can be linked to the macroscopic world via statistical mechanics and thermodynamics. For the second edition the structure of the text has been radically re-organised.

Instead of being in chapters, material is broken down into 97 short 'topics'...

Welfare states vary across nations and change over time. And the balance between markets and government; free enterprise and social protection is perennially in question. But all developed societies have welfare states of one kind or another - they are a fundamental dimension of modern government.

And even after decades of free-market criticism and reform, their core institutions have proven resilient and popular. This Very Short Introduction describes the modern welfare state, explaining its...