Felix Alexandrovich Berezin (A brief scientific biography);On the functional equation related to the quantum three-body problem;The differential calculus on quantum linear groups;The Penrose transform on flag domains in mathcal F(\mathbb {C}P^2) Defining relations associated with principal mathfrak {sl}(2) subalgebras;A generalization of the Berezin-Lieb inequality;Quantization on para-Hermitian symmetric spaces;Integral operators with Gaussian kernels and symmetries of canonical commutation relations;Ergodic unitarily invariant measures on the space of infinite Hermitian matrices;Cogitations over Berezin's integral;Remarks on the topology of the Hilbert Grassmannian;Asymptotic completeness;Constructive modules and the reductivity problem in the category mathcal {O} Alik Berezin in the recollections of friends