Every couple years I’ll go read Magic Inc by Bret Viktor (not a book, just online: http://worrydream.com/MagicInk/) and I always find it refreshing reminder to think about how we can design technology to help us rather than just create a CRUD interface.
‘Sketching User Experiences’ by Bill Buxton https://www.goodreads.com/book/show/980280.Sketching_User_Ex... and ‘Mental Models’ by Indi Young: https://rosenfeldmedia.com/books/mental-models/ we’re both very influential to me as a young designer thinking about process and I believe they are still both relevant.