The "regular sized" notebook itself is similar to the A5 size, except it has a slightly slimmer width. This makes it easy to carry, and it even suits better for writing. You can insert maps, tickets, and three-folded A4 sized papers inside. The structure of the notebook is simple, and its simplicity makes it easy to customize. Please choose your favorite refills that include notebooks made of various papers, zipper cases, and pockets. You can paste stickers on the cover of the notebook and add charms on the bookmark or the rubber band to personalize to your style. The more you use the notebook, the more the texture and the taste of the leather cover changes, and this maturity simply seems to reflect the user. Utilizing this notebook during your daily life will surely make you feel that every day is a journey. This essence and maturation is what makes TRAVELER'S notebook the worlds most fun notebook. Regular sized TRAVELER'S notebook starter kit comes with the leather cover and blank notebook.