This eBook ("Insider English") is a treasure and great tool for ELT teachers as well as autonomous learners (intermediate and above) of English. It is unique in that you have a lifetime of updates at no extra cost. It now has 295 pages, with no fancy illustrations—instead you get meticulously organised data (e.g. tables and charts), and explanations about English—things you might not know in some cases, even as a native speaker.)
On purchase, be sure to include your e-mail address so that I can forward the link to the Evernote cloud (for Premium and other subscribers) now containing over 2,060 files (increasing weekly).
I trust I have aroused your curiosity and whetted your appetite for the true secrets behind the English language. Study the free Preface & Table of Contents for an overview.
1% of proceeds will go to the International Tree Foundation.