Thank you. The best ROI has been speaking for me.
Giving talks is the best way to sell print copies. Our local bookshop, in conjunction with the publishers, used to invite famous authors to launch their books at venues here. Being on the committee of our SA Writers' Circle I got invites to these events (the snacks were delicious

) We had Wilbur Smith and Jeffrey Archer amongst others. Jeffrey Archer was quick to ask how many copies had been sold

. This was when I realised the value of being an accomplished public speaker and joined a public speaking club. Thirty years later it was also the reason why I published my book on public speaking hoping to help writers (and others) conquer their fear. I've given numerous talks at libraries, schools, Rotary clubs, gardening clubs, women's clubs etc. People like to buy autographed copies. I've also done radio interviews.