What book recommends to buy for 3-Tier Arch.

Question

Hello i am new in this web, so amazing.

 

I was searching for books about C# - SQL and 3-Tier Programming.

 

What book you recommended for start in it? 

 

C# and SQL

C# - ASP.net and SQL

Working with 3-Tier Architecture.

 

Thank's for your replys.

 

Oscar.