Acyclic diene metathesis (ADMET) polymerization is a synthetic strategy used to prepare polyolefins decorated with precisely spaced functional groups. Offered here is a survey of monomer design and synthesis, expert advice on α,ω-diene monomer synthesis and purification, and a guide to selecting the optimal catalyst. In light of the advances in olefin metathesis catalysts and the library of ADMET polymers prepared, a discussion of what has been learned from these carefully prepared precision polymers is presented.