"mein kampf" - "my struggle" by adolf hitler, question?

i am researching adolf hitler in HSIE and came across some information about hitler writing a book while in jail. this book was called mein kampf (my struggle) and there are many copies out there at the moment. it seems as if this book would be quite an interesting read for it had such an impact on people in 1939. IS THIS BOOK WRITTEN IN ENGLISH?