I'm looking for a good book on dikduk for strictly loshon hakodesh (for studying tanach and talmud) . Any suggestions? in english preferably
My preferance is ספר דקדוקי שי by הר' שמואל מנדלבוים.
It's in Hebrew and introduces you step-by-step to Loshon Hakodesh's grammar.
Full disclosure: The author is my brother's brother-in-law.
Conact M. Guttman at Dikdukbooks@gmail.com for an extensive collection of Dikduk Books including Sefer Klalei Taamei Hamikra and others
I find it useful, but it will mostly help you with Tanach, Talmud takes longer time since include aramaic and mishnaic hebrew as well.