<Table> Diary of a Wimpy Kid <Tr> <Td_colspan="2"> Cover of the first edition of the book </Td> </Tr> <Tr> <Th> Author </Th> <Td> Jeff Kinney </Td> </Tr> <Tr> <Th> Illustrator </Th> <Td> Jeff Kinney </Td> </Tr> <Tr> <Th> Cover artist </Th> <Td> <Ul> <Li> Jeff Kinney </Li> <Li> Chad W. Beckerman </Li> </Ul> </Td> </Tr> <Tr> <Th> Country </Th> <Td> United States </Td> </Tr> <Tr> <Th> Language </Th> <Td> English </Td> </Tr> <Tr> <Th> Series </Th> <Td> Diary of a Wimpy Kid </Td> </Tr> <Tr> <Th> Genre </Th> <Td> Comedy, Young adult fiction </Td> </Tr> <Tr> <Th> Publisher </Th> <Td> Amulet Books </Td> </Tr> <Tr> <Th> Publication date </Th> <Td> April 1, 2007 </Td> </Tr> <Tr> <Th> Media type </Th> <Td> Print (paperback, hardcover) </Td> </Tr> <Tr> <Th> Pages </Th> <Td> 221 </Td> </Tr> <Tr> <Th> ISBN </Th> <Td> 978 - 0 - 14 - 330383 - 1 </Td> </Tr> <Tr> <Th> Followed by </Th> <Td> Diary of a Wimpy Kid: Rodrick Rules </Td> </Tr> </Table> <Tr> <Td_colspan="2"> Cover of the first edition of the book </Td> </Tr>

When was the diary of a wimpy kid published