1. Review on phage genes that affect bacterial phenotypes Karen Maxwell 2. Phage lysis: new perspectives on the bacterial cell envelope Ryland Young 3. CRISPRs as the adaptive immune system of archaea and bacteria Rodolphe Barrangou 4. CRESS viruses Siobain Duffy 5. Tupanviruses Jonatas Abrahao 6. Giant virus evolution Eugene Koonin