Question

what are the most useful English grammar books?‏

تحديث للسؤال برقم 1

I searched for some books then I found some I would like to share them with you
english grammar
Cambridge English Grammar Understanding the Basics
http://adf.ly/REZyP
English Vocabulary In Use
http://adf.ly/REa9S
How English Works, a Grammar Practice Book with Answers
http://adf.ly/REalp
When Bad Grammar Happens To Good People
http://adf.ly/REaqD
Fundamentals_of_English_Grammar__workbook
http://adf.ly/REav0
Oxford guide to English grammar
http://adf.ly/REayb
english grammar with laughter
http://adf.ly/REb2F
Grammar for Teachers
http://adf.ly/REddh
ENGLISH GRAMMAR DRILLS
http://adf.ly/REdh5
English_Grammar_for_ESL_Learners
http://adf.ly/REdkA
Just_Enough_English_Grammar
http://adf.ly/REdoa
Oxford Practice Grammar With Answers
http://adf.ly/REdrC
English_Grammar_Practice
http://adf.ly/REdw3
English_-_Essential_Grammar
http://adf.ly/REe0a
English Grammar A University Course
http://adf.ly/REe3r
Games For Grammar Practice
http://adf.ly/REe6y
English_Book_-_Fun_With_Grammar
http://adf.ly/REe9y
Understanding_English_Grammar
http://adf.ly/REeCU
Gucker Philip - Essential.English.Grammar
http://adf.ly/REeET
ELS_English_Grammar_Inside_And out
http://adf.ly/REeGa‏

تحديث للسؤال برقم 2

click on the link and wait 5 seconds then press skip you will find the correct link‏

Answer 1

Pullum & Huddleston's "The Cambridge Grammar of the English Language" http://www.cambridge.org/uk/linguistics/…
And the "lite" version:
Pullum & Huddleston's "A Student's Introduction to English Grammar" http://www.cambridge.org/uk/linguistics/…
These are the most up-to-date and reliable books on UK/US English grammar in existence, written by a team of top-level linguists.
(You want to avoid single-author books; they're usually just general-purpose writers with unsupported personal opinions on English - the kind of thing that for centuries has given us weird
pseudo-rules that bear no relation to how most people use English. The Pullum & Huddleston books are collective efforts based on descriptive corpus research).‏

Answer 2

SCHOOLS BOOKS FROM OXFORD I THINK IT'S THE BEST =))‏