I was reading *Aerodynamics for Engineering Students* by Houghton and saw the following graph:

[![enter image description here](https://i.stack.imgur.com/APKNX.png)](https://i.stack.imgur.com/APKNX.png)

A lot of other sources say that increasing camber increases CLmax, like the graph below.

[![enter image description here](https://i.stack.imgur.com/Np4Xa.png)](https://i.stack.imgur.com/Np4Xa.png)

I am a little confused by what camber actually does to CLmax? An explanation which focuses on the physics would be very helpful!