From my Pinterest board ‘Sexy Bookshelves‘.
It could be practical if you can always remember what colour the spine is on your favourite books!
I think it could be fun to devote one or two shelves in a house to LGBT+ authors. And for sexist and homophobic authors you could try gently ripping off the covers and sort of tossing the book into some mud somewhere.
What do you think of the rainbow bookshelf method of organisation?Are you more of an alphabetical or organise-by-genre kind of reader? Or are all your books on a Kindle? Let me know in the comments!
Faevourite 
ive always wanted to do this! problem is my books arent particularly colourful- most of the time the covers are just black.
i guess it would only work as well if the books were for decorative, non-reading persons, because you’d have to remember exactly where you picked it out from so the colour charts not ruined. xxx
I’m still in awe of your alphabetic everything — I don’t think you have to worry!