Inaugurated in 2002 with a show at the Jerwood Space, the “A” series of paintings is so far the main grouping of works by Gili, and it is the series that has lasted the longest. Its production often runs in parallel with other works, and within it, certain subseries are sometimes revisited.

The slow development of this series follow what can be called Mondrianesque ways, where each painting informs the next one and is unthinkable without it. This slow development is highly cherished by Gili, and he often talks about it. This slow development was in fact one of the recurrent subjects in his PhD thesis on Repetition (Universitat de Barcelona, 2001).