I started to read again and my latest book is:
"Erickson, hypnose and psychotherapie" from Dr Dominique Megglé
It's in French, but I am sure there is English book on the theme as Erickson was American.
From the title, which can be understood as really close to English, it seems quite boring, but it's not.
I've learnt a lot of things and I will be interested to try it.