What would attract you to read an introductory textbook in a field very far from your own?
Curiosity.
Also, practical necessity, of course.
Curiosity makes you pick a book, and necessity seek it out. But actually read? (And enjoy, I mean.)
Curiosity makes you at least scan through a book to see if it’s worth reading. As to what makes a book interesting enough to read is a complicated subject :-) I’m sure many writers would dearly love to know :-D but there is no universal answer.
Curiosity.
Also, practical necessity, of course.
Curiosity makes you pick a book, and necessity seek it out. But actually read? (And enjoy, I mean.)
Curiosity makes you at least scan through a book to see if it’s worth reading. As to what makes a book interesting enough to read is a complicated subject :-) I’m sure many writers would dearly love to know :-D but there is no universal answer.