The aim of this paper is twofold. One of them is to introduce the class of harmonic ν-Bloch-type mappings as a generalization of harmonic ν-Bloch mappings and thereby we generalize some recent results of harmonic 1-Bloch-type mappings investigated recently by Efraimidis et al. (Complex Var Elliptic Equ 62:1081–1092, 2017). The other is to investigate some subordination principles for harmonic Bloch mappings and then establish Bohr’s theorem for these mappings and in a general setting, in some cases. © 2018, Spri...