T1 did this much more than T2. He recommended 2 or 3 different Carl Rogers books, a book based on wind in the willows where Toad goes to counselling called 'Counselling for Toads", a book about a therapist's 'use of self', "TA today", and Irvin Yalom's 'love's executioner' (I really disliked Yalom after that, but he has grown on me since I read a couple of his other books).
For all the negative things I say about T1, I do appreciate him introducing me to these writers and ideas. It was eye opening and influential for me.
I can't think of anything current T has recommended, but he might have. I don't think I have read anything he's recommended, but then I don't bear the same burning desire to please current T or to prove myself like I did with T1 (part of the unhealthy dynamic).
I have read one of current T's books though, which was interesting.