Henryk Gudas has spent the last 17 years running Gudas, Inc., a jewelry design studio. In his free time Henryk Gudas likes to relax by reading. He is especially fond of the Harry Potter series.

1. By Henryk Gudas

2.  Henryk Gudas has spent the last 17 years running
Gudas, Inc., a jewelry design studio. In his free time
Henryk Gudas likes to relax by reading. He is
especially fond of the Harry Potter series.
A number of the highest selling book series of all
time, such as the Berenstein Bears, Choose Your Own
Adventure, and Nancy Drew, are targeted at younger
readers. R.L. Stein’s Goosebumps horror series for
young readers is the second highest selling book
series of all time with more than 300 million copies
sold. However, no book series has approached the
sales levels of the seven Harry Potter novels written
by J.K. Rowling between 1997 and 2007.

3.  The series began with high expectations, as
Scholastic Press purchased American rights to the
books for $100,000 before the first novel came out in
Britain. Harry Potter and the Philosopher’s Stone,
known in America as The Sorcerer’s Stone, has sold
nearly 110 million copies over the last two decades.
Books two through seven have each sold a minimum
of 60 million copies, bringing the series total beyond
450 million copies. The series holds a number of
additional sales records and first print records in
both the United States and Great Britain. The final
book of the series sold 11 million copies in just 24
hours, making it the fastest selling book of all time.