Get Elements By Attribute in C# using XMl document ???

Question

i have this XML Document example , how can i use (Get Elements by Attribute) method ? to access the personal information about the client ?

Example:

 

<client>
    <Name Num="1">Amer</Name>
    <SurName Num="1">Belly</SurName>
    <Certification Num="1">Journalism and Media</Certification>
    <Expertise Num="1">Three year as Journalist</Expertise>
    <Essay1 Name="Amer">better friend</Essay1>   
    <Email>[email protected]</Email>
  </client>