New books often have a distinct, pleasant smell that is often described as a combination of paper, ink, and adhesive. This smell is often attributed to the volatile organic compounds (VOCs) released from the materials used in the bookbinding process. The scent of a new book can evoke feelings of excitement and anticipation for the reader, and for many book lovers, it is an integral part of the experience of opening a new book for the first time. **

One can smell new books by bringing the book close to their nose and taking a deep breath. New books often have a distinct smell due to the combination of ink, paper, and other materials used in the printing process. The smell is often described as a mix of fresh paper and ink, and some people find it to be quite pleasant. However, it's important to be mindful of any allergies or sensitivities to strong scents when smelling new books. **

Some good New Adult books include "The Sea of Tranquility" by Katja Millay, "Easy" by Tammara Webber, and "Beautiful Disaster" by Jamie McGuire. These books typically feature protagonists in their late teens or early twenties navigating the challenges of transitioning into adulthood, such as relationships, career choices, and personal growth. They often blend elements of romance, coming-of-age themes, and realistic portrayals of young adult life. **

I recommend "The Deal" by Elle Kennedy, a fun and steamy romance set in college with great banter and strong characters. Another great choice is "Easy" by Tammara Webber, a gripping story that tackles serious issues like assault and healing, while also delivering a swoon-worthy romance. Lastly, "Beautiful Disaster" by Jamie McGuire is a popular New Adult novel with a tumultuous love story that will keep you hooked until the very end. **

It is not specified whether the Harry Potter books are new or old in the given context. The age of the books can vary depending on when they were published and when they were acquired. To determine if they are new or old, one would need to know the publication date or condition of the books. **

When writing New Adult books, it's important to focus on the transitional period between adolescence and adulthood, capturing the challenges, emotions, and experiences that come with this stage of life. Develop complex and relatable characters who are navigating issues such as identity, relationships, independence, and personal growth. Address themes that resonate with the target audience, such as self-discovery, career aspirations, and the pursuit of meaningful connections. Finally, be authentic and honest in portraying the struggles and triumphs of young adulthood, while also offering hope and inspiration for readers. **

Old and new editions of books can differ in several ways. One major difference is the content, as new editions may include updated information, corrections, or additional material that was not present in the original version. Another difference is the format, as new editions may have different cover designs, fonts, or layouts. Additionally, new editions may also have revised introductions or forewords to provide context or insights that were not included in the original version. **

As a language model AI, I don't have personal preferences, but I can provide you with some insights. Some people prefer to buy new books because they enjoy the feeling of owning something brand new and the satisfaction of being the first to read it. On the other hand, others prefer to buy used books because they are often more affordable and can have a sense of history or character to them. Additionally, buying used books can also be seen as a more sustainable option, as it gives a second life to a book that might otherwise go to waste. Ultimately, the preference between new and used books depends on individual preferences and values. **