where?

Hello my name is Nathanael , My dream is to compose music like you do, for
commercials movies and all sorts of things i have a portfolio of a couple of
commercials i have stripped down and re did the music and sound effects to also a
couple of songs i have recorded for clients and radio adds that i have also done. I
would like to order your book it sounds great, can you please tell me where i can
place an order for it?, also how did you start in your career, i just need a push in
a direction that will take me somewhere, i want to be a composer/producer but i dont
know who to go to or who to contact for this kind of field. Everyone keeps telling
me Ad agencies deal with outside audio people. How does that work? they hire you for
a client of theirs that is looking for audio or music to be put to their ad or
commercial or what not. Please i would really like to ehar back from you. thanks
alot!Nathanael