bw certification

hai experters,

i want to write bw certification.

can u please help me ?

how will i read topics from tbw10,20,30 or mastering bw or bw certification?

can any one give me the suggestion?

give me the step by step procedure to complete bw certification topics.give me the very understanding topics which will very easy to read ur topics for bw certification.

take ur own time. but i want very east to understand.