Some adults feel that they are too old to learn and enjoy a childrens book. I want to give a presentation showing that you are never too old to learn and enjoy a childrens book.
What a great question! I believe adults can enjoy children's and young adult novels as well. As your question is about children's books, it depends on how young you have chosen. For example, your presentation could start with the book Pat the Bunny. Showing them the cover, ask what they think the book is about--the tactile teaching of the soft bunny. You could read the first two pages of a book like The Story of Babar by Jean de Brunoff and ask them to write the next two pages to intrigue them. Harold and the Purple Crayon would be perfect to have them decide what to do with the crayon you give them and then read them the book. Where the Wild Things Are by Maurice Sendak could have them comparing if they were ever a Wild Thing as a child. Any book by Eric Carle but especially The Very Hungry Caterpillar is a visual wonder as the book has the caterpillar making holes in the book. Alexander and the Terrible, Horrible, No Good Very Bad Day by Judith Viorst can help any adult who has ever had a bad day laugh at the little boy in this book. Of course, you must include a Dr. Seuss book, and my choice is Oh, The Places You'll Go. You can end with this and ask them about which places they have been or plan to go to in the future. I never planned to go to Bolivia, South America, but ended up there several times to see rain forests, new food, and wild macaws flying free. Good luck!