The real challenge had three parts:
The first was deciding how much to include. You could write a whole book about each of these figures, but I limited myself to one to four pages. I sometimes broke that rule when the richness of a person's life refused to fit, and I had to divide the account into several chapters, as I did with the stories of Rachel the Poet, Amnon Shamosh, Brenner, Mania Shohat, and others, whose lives I also had to summarize with a trembling hand.
The second challenge was the structure of the story. How could I capture the reader's heart in the very first sentence? Should I open with a gunshot, "On March 11, 1884, a single shot rang out at the small Bloemendaal Hotel in Rotterdam" (as in the story of Moses Wilhelm Shapira), or with a heroic myth - "Leonidas, King of Sparta, knew he would meet his death in a battle in the summer of 480 BCE" (as in the story of Private Yaakov Ohayon)? After the opening, meant to spark the flame, I always wove in the crowning achievement of their work, and from there delved into the milestones of their lives.
But the greatest obstacle of all was my command of written language, including punctuation, syntax, and spelling - none of which were my strong suits. Without the wonderful group of people who devotedly came to my aid along the way, I doubt I would have dared publish even a single line.