Map Making Book!

This Command:

/give @p minecraft:written_book 1 0 {author:"BenCrafter12345\\Toadster",title:"Book For Only Map Makers",pages:["{text:\"Map Making Book\",bold:\"true\",color:\"gold\",hoverEvent:{action:\"show_text\",value:{text:\"By BenCrafter12345 aka Toadster\",bold:\"true\"}},extra:{text:\"\\n\\n\\nGamemode:\",bold:\"true\",color:\"dark_aqua\",hoverEvent:{action:\"show_text\",value:{text:\"This has No Hover Event!\",bold:\"true\"}},extra:{text:\" 0\",bold:\"true\",color:\"dark_red\",hoverEvent:{action:\"show_text\",value:{text:\"This has No Hover Event!\",bold:\"true\"}},clickEvent:{action:\"run_command\",value:\"/gamemode 0\"},extra:{text:\" 1\",bold:\"true\",color:\"dark_red\",clickEvent:{action:\"run_command\",value:\"/gamemode 1\"},extra:[{text:\" 2\",bold:\"true\",color:\"dark_red\",clickEvent:{action:\"run_command\",value:\"/gamemode 2\"},extra:{text:\" 3\",bold:\"true\",color:\"dark_red\",clickEvent:{action:\"run_command\",value:\"/gamemode 3\"},extra:{text:\"\\n\\n\\nGive Blocks:\",bold:\"true\",color:\"dark_red\",extra:{text:\"\\n Barrier\",bold:\"true\",color:\"gold\",clickEvent:{action:\"run_command\",value:\"/give @p barrier\"},extra:[{text:\"\\n Command Block\",bold:\"true\",color:\"light_purple\",clickEvent:{action:\"run_command\",value:\"/give @p command_block\"},extra:{text:\"\\n Redstone Block\",bold:\"true\",color:\"dark_red\",clickEvent:{action:\"run_command\",value:\"/give @p redstone_block\"},extra:{text:\"---> Next Page\",bold:\"true\",color:\"gold\",clickEvent:{action:\"run_command\",value:\"/tellraw @p {text:\\\"Click on The Button!! Not On Me i am not a button\\\",color:gold}\"}}]}]}]}]}]}]}]}]}]}]}","{text:\"Page 2\",bold:\"true\",color:\"dark_green\",clickEvent:{action:\"run_command\",value:\"xD\"},extra:[{text:\"\\n\\n\\n Gamerules:\",bold:\"true\",color:\"dark_red\",extra:{text:\"\\ncommandBlockOutput:\",bold:\"true\",color:\"dark_green\",extra:{text:\" True\",bold:\"true\",color:\"dark_green\",clickEvent:{action:\"run_command\",value:\"/gamerule commandBlockOutput true\"},extra:{text:\" False\",bold:\"true\",color:\"dark_green\",clickEvent:{action:\"run_command\",value:\"/gamerule commandBlockOutput false\"},extra:[{text:\"\\n\\n\\n\\n Click To go To The Credits\",bold:\"true\",color:\"gold\",clickEvent:{action:\"change_page\",value:\"3\"}}]}]}]}]}]}","{text:\"Credits:\",bold:\"true\",color:\"dark_blue\",clickEvent:{action:\"run_command\",value:\"?\"},extra:[{text:\"Toadster aka\",bold:\"true\",color:\"gold\",extra:{text:\"\\n BenCrafter12345\",bold:\"true\",color:\"gold\",extra:{text:\"This was the Map Making Book!\",bold:\"true\",underlined:\"true\",color:\"black\"}]}]}]}"]}