Martinez told the club's official website: "Ian Holloway is a great guy, really good fun to work with and you can see how he motivates the team.
"This is a move a I am taking really seriously - my girlfriend and baby are moving here and looking forward to it."
He added: "I have played all my career in Spain so hopefully I will be able to add to the experience and qualities I have picked up there to the football we play here.
"I am really looking forward to playing football and learning from the manager."
Martinez becomes the Seasiders' seventh summer signing.
Source: BBC Sport
Source: BBC Sport