diff --git a/codex/librarian/onlinetag/session_state.py b/codex/librarian/onlinetag/session_state.py
index bf25c4ab5..d66a68c26 100644
--- a/codex/librarian/onlinetag/session_state.py
+++ b/codex/librarian/onlinetag/session_state.py
@@ -215,6 +215,21 @@ def serialize_candidate(c) -> dict[str, Any]:
             # The series' ordinal volume. Metron's issue rows carry one;
             # Comic Vine's search results have no equivalent.
             "volume": getattr(summary, "volume", None),
+            # What tells apart candidates whose covers and titles read
+            # identically: a reprint volume, a foreign or a collected
+            # edition. Comic Vine fills most of these from rows it already
+            # fetched. Metron always has the start year, but gets the
+            # format, publisher and issue count only when titles collide.
+            # Absent before comicbox 5.4, and None wherever a source has
+            # nothing.
+            "series_start_year": getattr(summary, "series_start_year", None),
+            "series_publisher": getattr(summary, "series_publisher", None),
+            "series_issue_count": getattr(summary, "series_issue_count", None),
+            # Publication format, e.g. "Trade Paperback". Metron only.
+            "series_type": getattr(summary, "series_type", None),
+            # The issue's own title and one-line deck. Comic Vine only.
+            "issue_title": getattr(summary, "issue_title", None),
+            "issue_summary": getattr(summary, "issue_summary", None),
         },
         "score": float(c.score),
         # What the blended score is made of. Two candidates can read
diff --git a/frontend/src/components/online-tag/candidate-row.vue b/frontend/src/components/online-tag/candidate-row.vue
index 2936b7c62..e060c0e81 100644
--- a/frontend/src/components/online-tag/candidate-row.vue
+++ b/frontend/src/components/online-tag/candidate-row.vue
@@ -6,6 +6,16 @@
   a link to the source's own page, and what the blended score is made
   of (#854).
 
+  Covers are often near-identical too: a reprint volume, a foreign or a
+  collected edition. So two subdued lines under the title carry what the
+  source knows about the series (publisher, format, start year, issue
+  count) and about the issue (its title and one-line deck). Comic Vine
+  supplies most of it from rows comicbox already fetched. Metron always
+  has the start year, but its format, publisher and issue count cost
+  comicbox a request, so they arrive only when titles would otherwise
+  collide. Any of it may be absent, and a prompt cached before comicbox
+  carried it shows neither line.
+
   The thumbnail loads straight from the source CDN. An <img> is exempt
   from CORS, and codex's own img-src allows the two upload paths (see
   _ONLINE_TAG_COVER_SECURE_CSP), so there is nothing to proxy. A blocked
@@ -44,9 +54,6 @@
       <span v-if="candidate.summary.year" class="candidateYear">
         ({{ candidate.summary.year }})
       </span>
-      <span v-if="candidate.summary.publisher" class="candidatePublisher">
-        &mdash; {{ candidate.summary.publisher }}
-      </span>
       <!-- eslint-disable-next-line sonarjs/no-vue-bypass-sanitization -->
       <a
         v-if="candidate.url"
@@ -57,6 +64,13 @@
         >{{ sourceLabel(candidate.source) }}
         <v-icon size="x-small">{{ mdiOpenInNew }}</v-icon></a
       >
+      <div v-if="seriesDetail" class="candidateSeriesDetail">
+        {{ seriesDetail }}
+      </div>
+      <!-- A deck can run long: clamped, the rest in the tooltip. -->
+      <div v-if="issueDetail" class="candidateIssueDetail" :title="issueDetail">
+        {{ issueDetail }}
+      </div>
       <!-- Matching scores reprint series names too, so a comic filed
          under a localized title matches a series name that looks
          nothing like its filename. These are the reason. -->
@@ -67,10 +81,19 @@
         {{ scoreDetail }}
       </div>
     </div>
-    <v-chip size="x-small" class="ml-2">{{ scorePercent }}%</v-chip>
-    <v-btn variant="tonal" size="small" color="primary" @click="$emit('pick')">
-      Pick
-    </v-btn>
+    <!-- Never shrinks, so long detail text wraps instead of squeezing
+         these. On phones it drops to its own line; see the styles. -->
+    <div class="candidateActions">
+      <v-chip size="x-small" class="ml-2">{{ scorePercent }}%</v-chip>
+      <v-btn
+        variant="tonal"
+        size="small"
+        color="primary"
+        @click="$emit('pick')"
+      >
+        Pick
+      </v-btn>
+    </div>
   </div>
 </template>
 
@@ -107,6 +130,31 @@ export default {
     scorePercent() {
       return Math.round(this.candidate.score * PERCENT);
     },
+    seriesDetail() {
+      const {
+        seriesPublisher,
+        publisher,
+        seriesType,
+        seriesStartYear,
+        seriesIssueCount,
+      } = this.candidate.summary;
+      return [
+        seriesPublisher || publisher,
+        seriesType,
+        seriesStartYear ? `Series began ${seriesStartYear}` : "",
+        seriesIssueCount
+          ? `${seriesIssueCount} ${seriesIssueCount === 1 ? "issue" : "issues"}`
+          : "",
+      ]
+        .filter(Boolean)
+        .join(" · ");
+    },
+    issueDetail() {
+      const { issueTitle, issueSummary } = this.candidate.summary;
+      return [issueTitle ? `“${issueTitle}”` : "", issueSummary]
+        .filter(Boolean)
+        .join(" — ");
+    },
     scoreDetail() {
       // Prompts cached before these fields existed carry neither, and
       // the headline percentage alone is still meaningful.
@@ -138,6 +186,9 @@ export default {
 </script>
 
 <style scoped lang="scss">
+@use "vuetify/styles/settings/variables" as vuetify;
+@use "sass:map";
+
 .candidateRow {
   display: flex;
   align-items: center;
@@ -163,19 +214,64 @@ export default {
 
 .candidateVolume,
 .candidateYear,
-.candidatePublisher,
+.candidateSeriesDetail,
+.candidateIssueDetail,
 .candidateAka,
 .candidateScoreDetail {
   color: rgb(var(--v-theme-text-secondary));
 }
 
-.candidateAka,
-.candidateScoreDetail {
+.candidateSeriesDetail,
+.candidateAka {
   font-size: 0.8125rem;
 }
 
+// A step smaller: the deck and the score caveat are the least needed.
+.candidateIssueDetail,
+.candidateScoreDetail {
+  font-size: 0.75rem;
+}
+
+// A deck can run long. Two lines, then an ellipsis: one line left a
+// phone-width row about a dozen characters, and touch has no tooltip.
+// Same multi-line clamp as browser-table-cell.vue.
+.candidateIssueDetail {
+  display: -webkit-box;
+  -webkit-line-clamp: 2;
+  line-clamp: 2;
+  -webkit-box-orient: vertical;
+  overflow: hidden;
+  overflow-wrap: break-word;
+}
+
 .candidateSourceLink {
   margin-left: 8px;
   white-space: nowrap;
 }
+
+.candidateActions {
+  display: flex;
+  flex: 0 0 auto;
+  align-items: center;
+  gap: 8px;
+}
+
+// A phone has no room for cover, text, score and Pick side by side; the
+// text was left about 100px. The score and Pick wrap to their own line,
+// right-aligned, so the text gets the width beside the cover. The text's
+// zero basis keeps it on the cover's line however long it runs.
+@media #{map.get(vuetify.$display-breakpoints, 'xs')} {
+  .candidateRow {
+    flex-wrap: wrap;
+  }
+
+  .candidateInfo {
+    flex-basis: 0;
+  }
+
+  .candidateActions {
+    flex-basis: 100%;
+    justify-content: flex-end;
+  }
+}
 </style>
diff --git a/frontend/tests/unit/candidate-row.test.js b/frontend/tests/unit/candidate-row.test.js
index a3313f9c4..79c10f467 100644
--- a/frontend/tests/unit/candidate-row.test.js
+++ b/frontend/tests/unit/candidate-row.test.js
@@ -214,6 +214,23 @@ describe("CandidateRow details", () => {
     expect(mountRow().find(".candidateVolume").exists()).toBe(false);
   });
 
+  /*
+   * On phones the score and Pick wrap below the text as one unit, so the
+   * text gets the row's width. happy-dom applies no media queries; this
+   * pins the grouping the phone styles rely on.
+   */
+  test("groups the score and Pick apart from the text", () => {
+    const wrapper = mountRow();
+    const actions = wrapper.find(".candidateRow > .candidateActions");
+
+    expect(actions.exists()).toBe(true);
+    expect(actions.find(".v-chip").text()).toBe("92%");
+    expect(actions.find("button").text()).toBe("Pick");
+    expect(wrapper.find(".candidateInfo .candidateActions").exists()).toBe(
+      false,
+    );
+  });
+
   test("emits pick", async () => {
     const wrapper = mountRow();
 
@@ -222,3 +239,74 @@ describe("CandidateRow details", () => {
     expect(wrapper.emitted("pick")).toHaveLength(1);
   });
 });
+
+/*
+ * Near-identical covers with identical titles are common: a reprint
+ * volume, a foreign or a collected edition. Two subdued lines under the
+ * title carry what tells them apart.
+ */
+describe("CandidateRow series and issue detail", () => {
+  const DETAIL = {
+    seriesPublisher: "DC Comics",
+    seriesType: "Ongoing Series",
+    seriesStartYear: 2016,
+    seriesIssueCount: 85,
+    issueTitle: "I Am Gotham, Part One",
+    issueSummary: "A new hero arrives.",
+  };
+
+  test("joins what the source knows about the series", () => {
+    const line = mountRow({ summary: DETAIL }).find(".candidateSeriesDetail");
+
+    expect(line.text()).toBe(
+      "DC Comics · Ongoing Series · Series began 2016 · 85 issues",
+    );
+  });
+
+  test("a one-issue series says issue, not issues", () => {
+    const line = mountRow({ summary: { seriesIssueCount: 1 } }).find(
+      ".candidateSeriesDetail",
+    );
+
+    expect(line.text()).toBe("Dark Horse · 1 issue");
+  });
+
+  test("the series publisher wins over the scored one", () => {
+    const line = mountRow({ summary: { seriesPublisher: "Panini" } }).find(
+      ".candidateSeriesDetail",
+    );
+
+    expect(line.text()).toBe("Panini");
+  });
+
+  test("the publisher has left the title line", () => {
+    const wrapper = mountRow();
+
+    expect(wrapper.find(".candidatePublisher").exists()).toBe(false);
+    expect(wrapper.find(".candidateSeriesDetail").text()).toBe("Dark Horse");
+  });
+
+  test("quotes the issue title before its deck, the whole as a tooltip", () => {
+    const line = mountRow({ summary: DETAIL }).find(".candidateIssueDetail");
+    const text = "“I Am Gotham, Part One” — A new hero arrives.";
+
+    expect(line.text()).toBe(text);
+    expect(line.attributes("title")).toBe(text);
+  });
+
+  test.each([
+    [{ issueTitle: "Title" }, "“Title”"],
+    [{ issueSummary: "Deck" }, "Deck"],
+  ])("shows either half of the issue line alone", (summary, expected) => {
+    const line = mountRow({ summary }).find(".candidateIssueDetail");
+
+    expect(line.text()).toBe(expected);
+  });
+
+  test("a prompt cached before comicbox carried these shows neither line", () => {
+    const wrapper = mountRow({ summary: { publisher: null } });
+
+    expect(wrapper.find(".candidateSeriesDetail").exists()).toBe(false);
+    expect(wrapper.find(".candidateIssueDetail").exists()).toBe(false);
+  });
+});
diff --git a/tests/test_onlinetag_serialize_candidate.py b/tests/test_onlinetag_serialize_candidate.py
index 5759964c4..e3c017b84 100644
--- a/tests/test_onlinetag_serialize_candidate.py
+++ b/tests/test_onlinetag_serialize_candidate.py
@@ -11,6 +11,7 @@
 the serializer against real comicbox objects.
 """
 
+from types import MappingProxyType, SimpleNamespace
 from typing import Final
 
 from comicbox.formats.base.online.profile import Candidate, CandidateSummary
@@ -25,6 +26,16 @@
 _METADATA_SCORE: Final = 1.0
 _COVER_SCORE: Final = 0.6
 _VOLUME: Final = 2
+_DETAIL: Final = MappingProxyType(
+    {
+        "series_start_year": 2016,
+        "series_publisher": "DC Comics",
+        "series_issue_count": 85,
+        "series_type": "Ongoing Series",
+        "issue_title": "I Am Gotham, Part One",
+        "issue_summary": "A new hero arrives.",
+    }
+)
 
 
 def _summary(
@@ -169,6 +180,25 @@ class _Bare:
         assert data["cover_score"] is None
         assert data["cover_hash_attempted"] is False
         assert data["volume_id"] is None
+        for key in _DETAIL:
+            assert data["summary"][key] is None, key
+
+    def test_what_tells_identical_titles_apart_is_carried(self) -> None:
+        """
+        Near-identical covers and titles differ in these.
+
+        The summary is a stand-in because the pinned comicbox predates
+        the fields; the serializer reads them by name either way.
+        """
+        summary = SimpleNamespace(series="Batman", issue="1", year=2016, **_DETAIL)
+        candidate = SimpleNamespace(
+            source="comicvine", issue_id=1, score=0.5, summary=summary
+        )
+
+        data = serialize_candidate(candidate)
+
+        for key, value in _DETAIL.items():
+            assert data["summary"][key] == value, key
 
     def test_display_fields_do_not_bump_the_prompt_version(self) -> None:
         """