Welcome to Wiki Tree! You will find it lots of fun and very addictive once you starting adding to your family tree.
To type on your Bibliography, click on the Edit button at the top of your profile page. Scroll down to the bibliography area and start writing about yourself. See my profile Sell-322 to see how I started my profile. Then scroll up to the area to say what change you made on your profile. I typed added to the bibliography. Then use the save button. To get back out of edit I click on the profile ID at the top of the page and it will go to your profile again.
Enjoy your journey with Wiki Tree!!!