If you're interested in the Justices' side gigs -- like adjunct teaching and book writing -- this report is for you. SCOTUSblog summarizes it all here:
Sotomayor and Gorsuch reported healthy outside income from book advances and royalties. Sotomayor has several books under her belt, including her 2013 memoir My Beloved World and books for middle schoolers and younger children, that last year yielded her $212,181 in advances and royalties – just short of her salary of $265,600. Gorsuch reported $623.92 in royalties from Princeton University Press, presumably from his 2009 book on assisted suicide and euthanasia, as well as $100,000 in royalties from Penguin Random House for his recent book, A Republic, If You Can Keep It.