The main task for imagination in Roman Ingarden’s theory of literary work is to reconstruct fictional objects and their appearances, as well as to furnish details even not mentioned in the work but compatible with the schematic description contained in the work. Imagination, therefore, plays an essential role in the act of Ingardenian ‘concretization’, that is in an inner presentation of the written work by the mind of the reader. According to the program of anti‑psychologism, the imaginative activities do not belong to the literary work. In particular, the creative imagination of the author and the free inspirations experienced by a reader must not be regarded as part of the work. Ingarden understands imagination traditionally, as the ability of visualizing mental images. It is possible, however, to understand imagination in a different way, that may be called semiotic, when it becomes an art of giving meaning to fictitious, fantastical, metaphorical and symbolical sentences. Adopting such a conception of imagination reveals imaginative features in all the four levels of literary work indicated by Ingarden. In particular, the notorious Ingardenian ‘quasi‑judgment’ could be defined as the imaginative sentence.