From this detailed analysis,
The close-up shot depicting the joining of two hands is very powerful, symbolising unity and alliance as the Jewish people cannot make a difference on their own, and the bond between Schindler and 'his jews' is ultimately triumphant as he manages to save thousands of lives. The fact that it appears to be a child's hand joining with an adults could represent the vulnerability of the Jewish people, in the sense that they are almost portrayed and treated like children unable to defend themselves.
This vulnerability immediately creates a strong sense of sympathy, as us the viewers want to reach out and help them and see the 'weaker people' triumph. In the background a faded list of names is visible as 'schindlers list'. The fact that the poster has been designed to show names and numbers, rather than faces of the Jewish people could represent how they are depicted throughout the film and in the view point of the majority of Germans throughout this film, as just numbers with no significance or importance and not treated as individuals but instead as a mass work force.
The list also emphasises the sheer amount of Jews who have had their human rights stripped and personally the list format makes me feel uncomfortable because of the way it emphasises that so many Jews have been treated this way.
The list finally foreshadows latter events, as we discover later in the film that Schindler compiles a list of 'his Jews', the ones that have worked for him in order to save their lives.
