I post these jobs in good faith and do my best to ensure they are not of the write-a-full-length-book for £50 type. But I am all too fallible so please do your research before making any kind of commitment.
Also be wary of anyone who wants you to write for free for the experience or the exposure.
Most writers do write for free sometimes but ask yourself:
Could you be taking a paying job away from another writer?
Is this something you could be proud of including on your CV?
If they would pay a car mechanic or a plumber, why won’t they pay a writer?