I have been learning Spanish for roughly 2 years but eventually stopped to start learning German for study purposes. I had reached an A2 level but it was not high enough for me to solidify everything into my brain and now after 3 months of stopping lessons I've forgoten some of my vocabulary, tenses, etc. Now, for the summer I'm gonna do some Spanish courses to reach B1/Low B2 level but after October I'm gonna have to drop it again for like 9 months. In that case, are there any good books you'd recommend I could read at my level to maintain the Spanish I've learned? Id prefer some books that are not too advanced because I don't want to have to keep searching up words every time I read the book. Also, would just reading books be a valid maintenance method? Thanks!