Analog bring a dependable collection of hard-science fiction story , novella , and frequently , a serialized novel . almost all of they be worth reading ; I be have trouble thinking of a Analog story that make I give up before reach the end . while its sister publication Asimov 's tend more to the social-sf or more literary form , Analog stick to a formulum of hard-sf with some recur feature : one factual science article , one speculative science article , and a short sf humor piece -lrb- probability Zero -rrb- . Analog also have a lively letter column , where editor Stanley Schmidt or the story author often reply . and Schmidt 's editorial be always a good read .  some of the factual science article well-compliment the story , some just do not have any relation -lrb- and if I skip anything in Analog , it be some of the drier fact piece -rrb- . some excellent write-up such as a comparison between long-term weather datum and historical regime change could lead to several future story in the magazine .  dependable , high-quality , and enjoyable .  one change in publication not mention here : both Analog and Asimov 's have go to 10 issue a year from 11 , with 2 `` double issue '' instead of one per year . the double issue be always a treat but then one must wait 2 month for the next regular issue !