Sophie's Diary, book by Dora Musielak

This book was inspired by the French mathematician Sophie Germain.

Sophie Germain made important contributions to number theory and mathematical physics. She advanced the proof to Fermat's Last Theorem, a proof so challenging that it took many mathematicians' efforts and more than 300  years to complete.

Sophie's Diary is available from AuthorHouse, amazon.com, Barnes & Noble, and many other booksellers.