I’m very excited that our book: Evans & Carlyle (2021) Outcome measures and evaluation in counselling and psychotherapy is out and available via: https://ombook.psyctc.org/SAGE
The book isn’t about CORE but congruent with all the thinking that created CORE and it should help anyone using CORE.
Do sign up for the very low frequency CORE updates list to get information when I post it. I promise you won’t get swamped with Emails, so far I have never posted more than a monthly update! To sign up, go to https://link.psyctc.org/Email_list.