Best teen spanish language study books according to redditors

Dime?

Two anthologies: Prosa moderna del mundo hispánico and Prosa de la España moderna. Each selection has vocabulary notes in the margin. As a caveat, I haven't read either (the "Mundo Hispánico" volume has been warming my bookshelf for a while), but they are super-cheap as used books on Amazon and the selection looks decent for the volume I have. Its authors are Manual Zeno Gandía, Ana María Matute, Frank Rivera, Ignacio Aldecoa, Cristina Peri Rossi, Isabel Allende, Camilo José Cela, and Juan Rulfo.

https://www.amazon.com/Avancemos-Level-1-MCDOUGAL-LITTEL/dp/061859406X/ref=sr_1_2?ie=UTF8&qid=1498092948&sr=8-2&keywords=avancemos+level+1

This book was the one I learned from they have very useful online exercises if you have a valid online code in the book.

This is the notebook to go with it. that you can write in and do the exercises from the book.

https://www.amazon.com/Avancemos-Cuaderno-Practica-niveles-Student/dp/061876593X/ref=pd_sim_14_2?_encoding=UTF8&pd_rd_i=061876593X&pd_rd_r=JW2WX5E0YP17C2YDC78C&pd_rd_w=k4AJT&pd_rd_wg=tGf5c&psc=1&refRID=JW2WX5E0YP17C2YDC78C

There are "graded readers" available in every language. For example, I am learning Italian so I bought some books from http://www.blackcat-cideb.com/108-italian-catalogue

They also have Spanish books. Then there are magazines like J'aime lire to encourage children to read.

Suivez La Piste: A Detective Thriller in French in 25 Short Episodes is probably the closest in concept.

I personally used Breaking the Spanish Barrier Level 1 a few years ago (now a senior) and it was great.
https://www.amazon.com/Breaking-Spanish-Barrier-Level-Beginner/dp/0971281726