I am new to this appain and required some assistance in learning

Refer this link for quick start into the Appian World to become as an Appian Developer.

academy.appian.com/

Follow this link -community.appian.com/.../ and select the domain you would like to proceed with. 
Also, here are some resources that can help you. 

1. community.appian.com - To ask questions, search for answers or to help other people. 
2. academy.appian.com - To browse through a rich collection of video lectures. 
3. docs.appian.com - Heavy and intensive documentation of everything that you can think of.