Question

assalamo alaikoem warahmatullahi wabarakatuh

I have a question could you please tell me or send me info about the history of tajweed because there are a lot of styles of reading  such as Hafs,  Warsh,  etc etc.
thank you for your trouble.  

Answer

Wa alaikum assalaam wa rahmatu Allahi wa barakatuh.  There is absolutely no trouble in answering your question, it is a question many Muslims have.

They way of recitation of Hafs and Warsh are not styles, but each is a complete way of recitation passed down to the Muslims from the Prophet, .  Please see the following links for more explanation of the qira'aat.

http://www.abouttajweed.com/03190101.htm

http://www.abouttajweed.com/210502.htm