Both Robins (Rendle and Sloan) recommending the same book of writing advice – Writing Tools by Roy Peter Clark. That must mean it's good.

Russel Davies presents – and demonstrates – the key ideas from his book Everything I Know About Life I Learned From PowerPoint.

Great advice on giving presentations and lectures. My favourite: "Write headlines, not headings".

There is also a Part 2.

Masterclass in how to write as an academic – and why.