I've just received a contribution proposal to submit a book chapter to 'IntechOpen' publishers. Never heard about them... Anyone who has published with them?
(Sorry to be so cautious ... but thought someone could help).
They are so costly and not indexed. You can prefer other publisher who charge very less and even they have isbn number.
If you really want to contribute a good chapter you can approach springer or elsevier. Even you can propose a theme and you can be an editor for that book.