Occasionally, the full implications of certain clauses and the comments of the Society of Authors may not be apparent, but please take note all the same. Constant pressure has brought change over the years' royalties being paid twice a year, the inclusions of promises to publish before a certain date, the possibility of an author retaining copyright and various other copyright issues. Other things will change if we band together and stick up for what is often just our common sense rights. Make sure you can write. Most TEFL writers, like other writers, are made, not born.
Writing is a skill, a job which has to be learnt, sometimes the hard way.
It was useful advice, once I got over the initial sting. A common misconception on the part of publishers and would-be writers alike is that teachers or trainers with good ideas will be good writers. This is not necessarily so, and can lead to a lot of grief. By doing it, obviously. However, even if you are potentially an excellent writer, your publisher may not help you.