I love this book.  This book plainly lays out ways for kids to talk about their transgendered parents.  Everything is normal.  It may have been odd at first, but mom is still mom, even if his pronouns are now he/him.  I think this is good representation for libraries, but am well aware there will be a certain faction of people who think these should be banned from libraries.  There is also a companion book called She’s my Dad, and I think they would make excellent additions to libraries, or to households with a transiting family member.