Can you recommend a best Japanese grammar guides e-book (with english explanation) where I can download it?

Question:

Please give a specific link. ARIGATO

Answer:

If you are looking for a concise and thorough book of Japanese grammar (not one that will guide you through the learning curve but where you can look up grammatical expressions) then I can only suggest:
A Dictionary of Intermediate Japanese Grammar by Seicihi Makino and Michio Tsutsui.

This is not for beginners but for, as its title implies, someone who already knows the most basic stuff (The 7 conjugations of a verb, the basic applications of particles and the basic knowledge of how adjectives, adverbs, nouns and verbs work in Japanaese).

Where to download, I don't know, but it shouldn't be that hard to find it on the internet.