Krzysztof Szymanowicz's exhibition Yesterday - Today pays tribute to the role of memory in his art. It is the core of the artist's creative output, an attempt to answer a series of metaphysical questions and grasp the meaning of things not accessible by the human mind and senses. Krzysztof Szymanowicz's graphics serve as diaries of his past memories, his artistic autobiography.  Memories are often metaphorically called wax imprints, they are "imprinted" on a wax tablet.  The process of their creation is very close to the art of creating graphics. Szymanowicz's most recent series is entitled Engrams - the artist's attempt to define memory, still not very well understood by science.