It can be useful not only for DACA grantees, but also for TPS grantees; people considering adjustment of status, but who are ineligible because of their EWI/illegal entry to USA; people with criminal convictions; and those with removal (deportation) orders, or pending removal proceedings.
The advisory explains who is eligible to apply for Advance Parole (travel document), who can safely travel outside of USA, about risks of being denied admission to USA, and why this document is so important.The advisory is available for download as a PDF file here:
http://www.adminrelief.org/resources/item.592261-Practice_Advisory_From_Advance_Parole_to_a_Green_Card_for_DACA_Recipients