Probably quite a few forum members here have this trouble: looking through Photoshop books in a bookstore and finding that 95% or so of info in those books is directed toward beginners and intermediate users. I would appreciate suggestions from forum members about photoshop books written primerely for advanced users. Last book on the subject that tought me many new things about PS was Dan Margulis' "Professional Photoshop". It appears that for advenced users most useful sources of new Photoshop ideas come from art, graphic design, programming and photography sources.