Any book suggestions for those in a long term relationship with someone that recently came out as transgender?

I'm not sure if my title makes sense or if it's too specific. My partner of 10yrs came out as trans awhile back and there's a lot to adjust to. We've gone to counselling together, watched videos of general expectations for the mtf transition itself and of transitioning while in a relationship, and I've tried reading up on it, but haven't had too much luck with books. I've been reading Helen Boyd's "She's Not The Man I Married" and it felt spot on as far as how it can feel for the partner in a relationship with someone transitioning. I'm looking for suggestions that are either similar to that book or books that have any insight for partners that have been in a long term relationship with someone that came out as transgender. My partner is in the first steps of transitioning, so I want to learn more as a partner as they continue with the process. I'd really appreciate any suggestions!