The Messianic Secret of Hasidism
Brill Academic Publishers courteously granted me permission to post certain parts of The Messianic Secret of Hasidism on this website:
Introduction; ‘the Messianic Element in Hasidism.’ 
Chapter 9: ‘the Hasidic Immigration of 5537 (1777).’
A summarized version of the book's thesis can be found in two articles, both available on this website:
“Messianic Strains in Rabbi Israel Ba’al Shem Tov’s ‘Holy Epistle.’”
“The First Tzaddik of Hasidism: The Zlotchover Maggid and His Circle.”
The complete book, including the anthology ‘Disciples and Writings’ and two appendixes, can be purchased on: Brill Academic Publishers.
The publishers of the original edition in Hebrew: Haifa University Press and Zmora-Bitan Publishing House Ltd.