Sufi Trail guidebooks
Please note the books are in "crowdfunding" and delivery date will be after the 1st of July 2018
https://igg.me/at/sufitrail Indiegogo crowdfunding project
The Sufi Trail guidebooks are available in PDF and printed versions. There are two volumes Part 1 covering Istanbul to Seyitgazi and Part 2 from Seyitgazi to Konya.