It's ok, you can say it. It won't hurt my feelings.
"You are an English nerd."
"You're putting textbooks on your book blog???"
To which I will respond:
"Yes, I am a nerd. I loved my grammar class and I now subconsciously diagram every sentence I read. I am obsessed with correct punctuation and grammar now more than I ever was before taking this class."
"I feel that I have every right to put this book in this blog, because I read it cover to cover. And studied it. And screamed over it. And tore my hair out until I understood it. This book has been painful, but I have learned so much from it."