Hi,

When I was learning I used the MSDN tutorials found here:

http://msdn.microsoft.com/en-us/library/ms170208(v=sql.100).aspx

Also, this book is very good:

http://www.amazon.co.uk/Delivering-Business-Intelligence-Microsoft-Server/dp/0071549447/ref=sr_1_5?ie=UTF8&qid=1366621876&sr=8-5&keywords=ssas

Hope those help.

Thanks,

Simon