Partner and I will share care of our children and whilst they have friends in the same position I wonder if there are any good books that talk about parents splitting up/shared care etc that I can share with my children
Two homes is a good one. It's unemotive in that it talks about having two homes and doesn't deal with complex emotions: http://www.amazon.co.uk/Two-Homes-Claire-Masurel/dp/0744589258/ref=sr_1_1?ie=UTF8&qid=1416126581&sr=8-1&keywords=Two+homes
Mum and Dad Glue is not really about having two homes but how a boy tries to find glue to fix his mum and dad and realises he couldn't, that made me bawl my eyes out but it's a beautiful book... http://www.amazon.co.uk/Mum-Dad-Glue-Kes-Gray/dp/0340957115/ref=sr_1_3?ie=UTF8&qid=1416126581&sr=8-3&keywords=Two+homes
Best of luck, I find having these books around help... My boys have dealt with the breakup very well.