Covering the period between 1957 and 2010, this brief history illustrates modern British Quakers' movement from thinking that the laws against homosexuality might be wrong, to celebration of same-sex marriage in identical terms to mixed-sex marriage.
I think it would be fairly dry reading for a non-Quaker, but it was an interesting quick read for me and I learned some stuff, including when bisexuality and transgender were first consciously addressed and included in Quaker LG/B/T thinking.