Reddit reviews Operation Albion: The German Conquest of the Baltic Islands (Twentieth-Century Battles)

German perspective

Infantry Attacks by Erwin Rommel
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The best personal account of the war I have read. Not as well-written as Junger's book (that is also very good btw) but good for the many detailed descriptions, including sketches he made right after the events, of tactical battles he was in. Not so much about troops freezing in trenches and having no food, although there is some about that, but a lot of insight in how a small-unit officer had to act in combat and how much more was going on in battles than the stereotypical massed assaults.

Conduct of the War

Command or Control? Training and Tactics in the British and German Armies 1888-1918 by Martin Samuels (1996)
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Very detailed analysis with good examples highlighting differences in doctrine and training before and during the war. A bit heavy, but it explains many things, and good analysis of what happened in a few battles and why.

Stormtroop Tactics - Innovation in the German Army 1914-1918 by Bruce I Gudmundsson (1995)
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Not only about the stormtroopers, but also German (infantry) tactics in general and how they evolved. It starts out with a description of a German attack in 1940, and then goes back to 1914 to explain in detail how the tactics used in 1940 evolved.

Dynamics of Doctrine, by Timothy T Lupfer
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This is also a description of how German stormtroop tactics evolved, but much shorter. It is worth to mention because it is available as a free PDF, and good enough that you will find it quoted in books now and then. I prefer the Gudmundsson book, but this isn't a bad (free) introduction to the topic as I remember it (was several years since I read it).

Specific Battles

Loos 1915 by Nick Lloyd (2008)
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Very good and detailed description of the battle. Of all the books on typical BEF trench battles I read this is the one I liked the best.

Operation Albion: The German Conquest of the Baltic Islands by Michael B. Barrett (2008)
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Amazing operation. One of the biggest, if not the biggest, amphibious assaults in the war, and it is barely ever mentioned (I had never heard about it to be honest before someone on a forum mentioned this book). It is not only the details about the many battles on land and at sea that took place, but the book also has a lot of the tragedy of the disintegrating Russian units. Much of the book is based on researching previously closed Russian/Soviet archives and I hope we will see more fascinating books on things that happened on the eastern front we never heard about.