David Kadavy
1 min readDec 14, 2017

--

Yes, it appears that email still IS the best marketing tool. Though admittedly I don’t know enough about Facebook Messenger marketing to say for sure.

--

--

David Kadavy

Author, ‘Mind Management, Not Time Management’ https://amzn.to/3p5xpcV Former design & productivity advisor to Timeful (Google acq’d).