SUI GENERIS: LETTERS TO THE LATTER-DAY SAINTS, FOURTH BOOK EDITION, is a spiritually focused book authored by Nicosie, structured as a collection of 30 letters addressed to the Latter-Day Saints. The core mandate for writing the book came from a vision Nicosie received in May 2019, where the Holy Spirit instructed her to write end-time letters warning, about the many deceptions hindering God's people from entering His kingdom.The letters were primarily composed during the global COVID 19 lockdowns in 2020 and early 2021, and are directed toward the "Future Apostate End-Times Church". The author encourages readers to repent and return to true faith in Jesus Christ (Yeshua HaMashiach) to prepare for His second coming.