If you are interested in taking your opponent out of his comfort zone at the very first move, then the new book
Play 1.b4! may be just the ticket for you.
With this aggressive pawn lunge you avoid the many theoretical landmines of main line opening theory and you force Black to think for himself.
Ukranian IM Yury Lapshun, the main author, is an expert in this rare system and the book is illustrated with dozens of high-level games.
It provides options against all of Black's main defences, and highlights key ideas and tactics for both sides.
If you are adventurous and ambitious, please have a look
here.