Had to do that too. Although if I shared the author's name...I'd change it.
To do the clicky link: Highlight and copy (control+c on my Windows laptop, your mileage may vary) the URL of hte page you want to link to. Go back to your post, and type whatever text you want ("Here," "Clickety," or the name of the book, whatever). Highlight it with the cursor. Go up and click the little chain looking thingy at the top of the post. A window will open. In the top one of the two spaces that appear, paste the link you copied. Then either hit Enter or there may be a button to click to post it, I forget which. It should show your typed text word or words, in a different color or highlighted, and underlined. Then submit your post as usual.
