The contribution of flexible bis-pyridyl-bis-amide (bpba) ligands, which are also known as versatile ligands possessing various active coordination atoms (N and O) and different flexible –CH₂– skeletons, is significant in the construction of coordination polymers. In this Highlight, structures of the different dimensional networks based on the flexible bpba ligands with or without participation of auxiliary polycarboxylate ligands are discussed, along with an overview of the preparations and conformations of the ligands.