Download free Microsoft Azure Essentials: Migrating SQL Server Databases to Azure.
Available in PDF, Mobile PDF, EPUB and MOBI. This is Book 5 (I believe) in the Microsoft Azure Essentials series.
https://blogs.msdn.microsoft.com/microsoft_press/2016/05/11/free-ebook-microsoft-azure-essentials-migrating-sql-server-databases-to-azure/