Is it better to use the front and back of a business card?

Yes, printing on both sides is almost always worth it. A blank back is prime real estate you have already paid to produce, and double-sided printing usually adds very little to the cost while roughly doubling how much you can communicate.

• QR code linking to a portfolio, booking page, or profile.
• Services or menu list so the card doubles as a mini brochure.
• Appointment or note lines for anyone who books in person.
• Tagline or mission line that reinforces your brand.
• Map, hours, or social handles for local businesses.

Keep the front focused on your core identity and contact details, and use the back for the supporting content. That split keeps the primary side clean while still putting the extra space to work.