It's challenge time! The new book by YouTube star "Alles Ava." YouTube child star Ava loves small and big challenges. On her social media channels, the cheerful bundle of energy takes her fans through her life week after week and posts cool photos on Instagram. In her new 30-day photo challenge, Ava, along with her favorite photographer Sarah, shows you how you can easily create creative pictures too.

30 creative ideas for cool photos with your smartphone, featuring simple photo hacks and tips from Ava and photographer Sarah. Be creative – alone or with your best friend. Exclusive insights: Behind the scenes during the shoot with Ava. With space to write and stick in photos. Grab your smartphone and let's go! Exciting light and mirror effects, extraordinary perspectives, and great ideas for indoor and outdoor photos – you don't need a camera for creative pictures. Confetti party, DIY color filters, stylish retro wall, or DIY photo box – with these 30 photo ideas, you're guaranteed to have a lot of fun, whether alone or with your best friend. And of course, there are plenty of practical photo hacks and tips from Ava and her favorite photographer Sarah. Exclusively for all Ava fans: Behind the scenes during the shoot – Ava gives you exciting insights behind the scenes.