Was Alex Rider homeschooled in the book?

Alex Rider is not explicitly stated to be homeschooled in the books. He is mentioned to have gone to school at various points in the series, particularly during the first book, "Stormbreaker."

It's important to note that Alex's life is very unusual. He is trained as a spy from a young age and spends much of his time on missions, which would likely disrupt a regular school schedule. However, he does seem to attend school in between missions, suggesting he's not entirely homeschooled.

The author, Anthony Horowitz, hasn't explicitly stated whether Alex was homeschooled or not, leaving it to readers to interpret.