Just his initial glance had him squinting a little, as there was a bit of magical theory included, but he believed he'd be able to muddle through it enough to get the jist of the charms and what they might be useful to do.
Not wanting to bother Anthony with silly questions, he pulled out his wand, and with an Accio note paper, he had something to write on. He pulled a ballpoint pen out of his jacket pocket - he never went into the magical world without one, as he much preferred them to quills - and sat back down on the sofa, his legs crossed underneath him as he went to work on the book.