The logarithmic coefficients 𝛾𝑛 of an analytic and univalent function 𝑓 in the unit disk 𝔻 = {𝑧 ∈ β„‚ : |𝑧| < 1} with the normalization 𝑓(0) = 0 = 𝑓′(0) βˆ’ 1 are defined by logf(z)z=2βˆ‘n=1∞γnzn.