How To Make Custom Signs by alma.museska@gmail.com

/give @p sign 1 0 {
    BlockEntityTag: {
        Text1: "{text:\"Custom Sign \",bold:true}",
        Text2: "{text:\"Made In\",color:\"green\",bold:true}",
        Text3: "{text:\"minecraft\",color:\"aqua\",bold:true,clickEvent:{action:\"run_command\",value:\"give @p sign\"}}",
        Text4: "{text:\"command.science\",color:\"yellow\",bold:true,clickEvent:{action:\"run_command\",value:\"give @p air 1\"}}"
    },
    display: {
        Name: "Custom Sign"
    }
}