You must duplicate the <li> element and personalize your book information, see below:
<li class="slideshow-list__el">
<article class="tile | js-tile">
<a href="#">
<figure class="tile__fig">
<img src="PATH/BASE/IMAGE" data-hover="PATH/HOVER/IMAGE" alt="ALTERNATIVE TEXT" class="tile__img">
</figure>
<div class="tile__content">
<h2 class="tile__title | title title--medium">
TITLE OF <span class="title__offset title__offset--medium">BOOK<span>
</h2>
<div class="tile__description">
<p>DesignFlix @LoftAugusta - 25/02/2k20</p>
<div class="tile__image">
<img src="PATH/BASE/IMAGE" alt="ALTERNATIVE TEXT">
</div>
<p>Design as Downbeat</p>
<p>Lorem ipsum dolor sit amet consectetur adipisicing elit. Aperiam suscipit sequi consectetur rem molestias incidunt voluptate praesentium vitae facilis modi fugit autem nostrum unde impedit, sit veritatis officia cupiditate repellat!</p>
<p>- Ummm</p>
<p>- Dois</p>
</div>
<div class="tile__cta">
<span class="btn-inline">Spy this link</span>
</div>
</div>
</a>
</article>
</li>