Steal Like an Artist b Austin Kleon
This book was totally not on my radar. It was something my better half (who is way more creative than me) had finished and thought I would like.
It is a relatively short read that doesn't go too deep on any ideas but gives a good overall feeling on the topic of copying to a point others work and how this is at the heart of all great creatives out there. Throw in a few quotes from some well-known people from history and you have this relatively light read that makes you feel ok with being "inspired" by others.
I could recommend this for anyone in a creative field (not just arty farty people) as it can be applied to so many different situations and circumstances.