EcoDesign2017 publishes two proceedings:

USB proceedings:
Delivered on the conference day
Delivered only to conference participants
Not peer review proceedings
Contains all the papers presented (both Proceedings papers and E-book papers (see “Call for papers” about Proceedings papers and E-book papers))
Does not have an ISBN
E-book proceedings:
Published after the conference from Springer
Peer review proceedings
Contains only E-book papers that go through full paper peer reviews (see “Call for papers” about E-book papers)
Has an e-ISBN